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Finding the Fourth Proportional to 528,132.52, 728,841.54 and 377,589.16

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Solution

The fourth proportional to 528,132.52, 728,841.54 and 377,589.16 is: 521,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,132.52 : 728,841.54 = 377,589.16 : x
  2. Step 2: Convert to fraction form
    528,132.52/728,841.54 = 377,589.16/x
  3. Step 3: Cross multiply
    528,132.52x = 728,841.54 × 377,589.16
  4. Step 4: Simplify right side
    528,132.52x = 275,202,664,861.71
  5. Step 5: Solve for x
    x = 275,202,664,861.71/528,132.52
  6. Step 6: Final answer
    x = 521,086.38

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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.