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Finding the Fourth Proportional to 674,553.69, 930,847.55 and 372,728.25

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Solution

The fourth proportional to 674,553.69, 930,847.55 and 372,728.25 is: 514,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,553.69 : 930,847.55 = 372,728.25 : x
  2. Step 2: Convert to fraction form
    674,553.69/930,847.55 = 372,728.25/x
  3. Step 3: Cross multiply
    674,553.69x = 930,847.55 × 372,728.25
  4. Step 4: Simplify right side
    674,553.69x = 346,953,176,464.65
  5. Step 5: Solve for x
    x = 346,953,176,464.65/674,553.69
  6. Step 6: Final answer
    x = 514,344.79

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.