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Finding the Fourth Proportional to 615,136.60, 922,704.90 and 331,701.40

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Solution

The fourth proportional to 615,136.60, 922,704.90 and 331,701.40 is: 497,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,136.60 : 922,704.90 = 331,701.40 : x
  2. Step 2: Convert to fraction form
    615,136.60/922,704.90 = 331,701.40/x
  3. Step 3: Cross multiply
    615,136.60x = 922,704.90 × 331,701.40
  4. Step 4: Simplify right side
    615,136.60x = 306,062,507,116.86
  5. Step 5: Solve for x
    x = 306,062,507,116.86/615,136.60
  6. Step 6: Final answer
    x = 497,552.10

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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.