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Finding the Fourth Proportional to 529,255.28, 730,416.76 and 299,885.49

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Solution

The fourth proportional to 529,255.28, 730,416.76 and 299,885.49 is: 413,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,255.28 : 730,416.76 = 299,885.49 : x
  2. Step 2: Convert to fraction form
    529,255.28/730,416.76 = 299,885.49/x
  3. Step 3: Cross multiply
    529,255.28x = 730,416.76 × 299,885.49
  4. Step 4: Simplify right side
    529,255.28x = 219,041,387,227.10
  5. Step 5: Solve for x
    x = 219,041,387,227.10/529,255.28
  6. Step 6: Final answer
    x = 413,867.17

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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.