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Finding the Fourth Proportional to 529,146.30, 730,229.76 and 299,697.88

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Solution

The fourth proportional to 529,146.30, 730,229.76 and 299,697.88 is: 413,587.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,146.30 : 730,229.76 = 299,697.88 : x
  2. Step 2: Convert to fraction form
    529,146.30/730,229.76 = 299,697.88/x
  3. Step 3: Cross multiply
    529,146.30x = 730,229.76 × 299,697.88
  4. Step 4: Simplify right side
    529,146.30x = 218,848,310,984.91
  5. Step 5: Solve for x
    x = 218,848,310,984.91/529,146.30
  6. Step 6: Final answer
    x = 413,587.53

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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.