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Finding the Fourth Proportional to 529,770.49, 731,092.40 and 288,054.69

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Solution

The fourth proportional to 529,770.49, 731,092.40 and 288,054.69 is: 397,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,770.49 : 731,092.40 = 288,054.69 : x
  2. Step 2: Convert to fraction form
    529,770.49/731,092.40 = 288,054.69/x
  3. Step 3: Cross multiply
    529,770.49x = 731,092.40 × 288,054.69
  4. Step 4: Simplify right side
    529,770.49x = 210,594,595,363.49
  5. Step 5: Solve for x
    x = 210,594,595,363.49/529,770.49
  6. Step 6: Final answer
    x = 397,520.44

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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.