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Finding the Fourth Proportional to 529,775.59, 731,085.24 and 288,058.25

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Solution

The fourth proportional to 529,775.59, 731,085.24 and 288,058.25 is: 397,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,775.59 : 731,085.24 = 288,058.25 : x
  2. Step 2: Convert to fraction form
    529,775.59/731,085.24 = 288,058.25/x
  3. Step 3: Cross multiply
    529,775.59x = 731,085.24 × 288,058.25
  4. Step 4: Simplify right side
    529,775.59x = 210,595,131,200.32
  5. Step 5: Solve for x
    x = 210,595,131,200.32/529,775.59
  6. Step 6: Final answer
    x = 397,517.62

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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.