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Finding the Fourth Proportional to 635,427.15, 953,359.43 and 398,492.43

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Solution

The fourth proportional to 635,427.15, 953,359.43 and 398,492.43 is: 597,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,427.15 : 953,359.43 = 398,492.43 : x
  2. Step 2: Convert to fraction form
    635,427.15/953,359.43 = 398,492.43/x
  3. Step 3: Cross multiply
    635,427.15x = 953,359.43 × 398,492.43
  4. Step 4: Simplify right side
    635,427.15x = 379,906,510,356.56
  5. Step 5: Solve for x
    x = 379,906,510,356.56/635,427.15
  6. Step 6: Final answer
    x = 597,875.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.