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Finding the Fourth Proportional to 528,770.62, 729,626.46 and 302,372.38

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Solution

The fourth proportional to 528,770.62, 729,626.46 and 302,372.38 is: 417,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,770.62 : 729,626.46 = 302,372.38 : x
  2. Step 2: Convert to fraction form
    528,770.62/729,626.46 = 302,372.38/x
  3. Step 3: Cross multiply
    528,770.62x = 729,626.46 × 302,372.38
  4. Step 4: Simplify right side
    528,770.62x = 220,618,884,895.16
  5. Step 5: Solve for x
    x = 220,618,884,895.16/528,770.62
  6. Step 6: Final answer
    x = 417,229.85

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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.