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Finding the Fourth Proportional to 529,851.38, 731,261.12 and 303,496.88

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Solution

The fourth proportional to 529,851.38, 731,261.12 and 303,496.88 is: 418,863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,851.38 : 731,261.12 = 303,496.88 : x
  2. Step 2: Convert to fraction form
    529,851.38/731,261.12 = 303,496.88/x
  3. Step 3: Cross multiply
    529,851.38x = 731,261.12 × 303,496.88
  4. Step 4: Simplify right side
    529,851.38x = 221,935,463,211.52
  5. Step 5: Solve for x
    x = 221,935,463,211.52/529,851.38
  6. Step 6: Final answer
    x = 418,863.62

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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.