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Finding the Fourth Proportional to 529,897.60, 731,267.28 and 288,184.96

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Solution

The fourth proportional to 529,897.60, 731,267.28 and 288,184.96 is: 397,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,897.60 : 731,267.28 = 288,184.96 : x
  2. Step 2: Convert to fraction form
    529,897.60/731,267.28 = 288,184.96/x
  3. Step 3: Cross multiply
    529,897.60x = 731,267.28 × 288,184.96
  4. Step 4: Simplify right side
    529,897.60x = 210,740,231,836.11
  5. Step 5: Solve for x
    x = 210,740,231,836.11/529,897.60
  6. Step 6: Final answer
    x = 397,699.92

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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.