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Finding the Fourth Proportional to 526,580.66, 726,679.10 and 284,862.63

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Solution

The fourth proportional to 526,580.66, 726,679.10 and 284,862.63 is: 393,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,580.66 : 726,679.10 = 284,862.63 : x
  2. Step 2: Convert to fraction form
    526,580.66/726,679.10 = 284,862.63/x
  3. Step 3: Cross multiply
    526,580.66x = 726,679.10 × 284,862.63
  4. Step 4: Simplify right side
    526,580.66x = 207,003,719,592.03
  5. Step 5: Solve for x
    x = 207,003,719,592.03/526,580.66
  6. Step 6: Final answer
    x = 393,109.23

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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.