Home / 738,004.30-1,107,006.45-422,493.10

Finding the Fourth Proportional to 738,004.30, 1,107,006.45 and 422,493.10

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Solution

The fourth proportional to 738,004.30, 1,107,006.45 and 422,493.10 is: 633,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,004.30 : 1,107,006.45 = 422,493.10 : x
  2. Step 2: Convert to fraction form
    738,004.30/1,107,006.45 = 422,493.10/x
  3. Step 3: Cross multiply
    738,004.30x = 1,107,006.45 × 422,493.10
  4. Step 4: Simplify right side
    738,004.30x = 467,702,586,780.50
  5. Step 5: Solve for x
    x = 467,702,586,780.50/738,004.30
  6. Step 6: Final answer
    x = 633,739.65

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Double scale
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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.