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Finding the Fourth Proportional to 529,441.76, 730,666.56 and 299,996.96

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Solution

The fourth proportional to 529,441.76, 730,666.56 and 299,996.96 is: 414,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,441.76 : 730,666.56 = 299,996.96 : x
  2. Step 2: Convert to fraction form
    529,441.76/730,666.56 = 299,996.96/x
  3. Step 3: Cross multiply
    529,441.76x = 730,666.56 × 299,996.96
  4. Step 4: Simplify right side
    529,441.76x = 219,197,746,773.66
  5. Step 5: Solve for x
    x = 219,197,746,773.66/529,441.76
  6. Step 6: Final answer
    x = 414,016.73

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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.