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Finding the Fourth Proportional to 529,100.68, 730,164.30 and 287,387.98

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Solution

The fourth proportional to 529,100.68, 730,164.30 and 287,387.98 is: 396,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,100.68 : 730,164.30 = 287,387.98 : x
  2. Step 2: Convert to fraction form
    529,100.68/730,164.30 = 287,387.98/x
  3. Step 3: Cross multiply
    529,100.68x = 730,164.30 × 287,387.98
  4. Step 4: Simplify right side
    529,100.68x = 209,840,443,245.11
  5. Step 5: Solve for x
    x = 209,840,443,245.11/529,100.68
  6. Step 6: Final answer
    x = 396,598.32

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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.