Home / 738,000.45-1,107,000.68-264,624.30

Finding the Fourth Proportional to 738,000.45, 1,107,000.68 and 264,624.30

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Solution

The fourth proportional to 738,000.45, 1,107,000.68 and 264,624.30 is: 396,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,000.45 : 1,107,000.68 = 264,624.30 : x
  2. Step 2: Convert to fraction form
    738,000.45/1,107,000.68 = 264,624.30/x
  3. Step 3: Cross multiply
    738,000.45x = 1,107,000.68 × 264,624.30
  4. Step 4: Simplify right side
    738,000.45x = 292,939,278,721.40
  5. Step 5: Solve for x
    x = 292,939,278,721.40/738,000.45
  6. Step 6: Final answer
    x = 396,936.45

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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.