Home / 738,666.10-1,107,221.55-289,213.30

Finding the Fourth Proportional to 738,666.10, 1,107,221.55 and 289,213.30

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Solution

The fourth proportional to 738,666.10, 1,107,221.55 and 289,213.30 is: 433,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,666.10 : 1,107,221.55 = 289,213.30 : x
  2. Step 2: Convert to fraction form
    738,666.10/1,107,221.55 = 289,213.30/x
  3. Step 3: Cross multiply
    738,666.10x = 1,107,221.55 × 289,213.30
  4. Step 4: Simplify right side
    738,666.10x = 320,223,198,306.62
  5. Step 5: Solve for x
    x = 320,223,198,306.62/738,666.10
  6. Step 6: Final answer
    x = 433,515.49

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Double scale
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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.