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Finding the Fourth Proportional to 529,996.80, 731,407.62 and 288,292.29

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Solution

The fourth proportional to 529,996.80, 731,407.62 and 288,292.29 is: 397,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,996.80 : 731,407.62 = 288,292.29 : x
  2. Step 2: Convert to fraction form
    529,996.80/731,407.62 = 288,292.29/x
  3. Step 3: Cross multiply
    529,996.80x = 731,407.62 × 288,292.29
  4. Step 4: Simplify right side
    529,996.80x = 210,859,177,693.25
  5. Step 5: Solve for x
    x = 210,859,177,693.25/529,996.80
  6. Step 6: Final answer
    x = 397,849.91

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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.