Home / 738,138.30-1,107,207.45-364,890.30

Finding the Fourth Proportional to 738,138.30, 1,107,207.45 and 364,890.30

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Solution

The fourth proportional to 738,138.30, 1,107,207.45 and 364,890.30 is: 547,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,138.30 : 1,107,207.45 = 364,890.30 : x
  2. Step 2: Convert to fraction form
    738,138.30/1,107,207.45 = 364,890.30/x
  3. Step 3: Cross multiply
    738,138.30x = 1,107,207.45 × 364,890.30
  4. Step 4: Simplify right side
    738,138.30x = 404,009,258,592.74
  5. Step 5: Solve for x
    x = 404,009,258,592.74/738,138.30
  6. Step 6: Final answer
    x = 547,335.45

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Half scale
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Double scale
Find fourth proportional to 738,139.30, 1,107,208.95 and 364,891.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.