Home / 615,196.90-922,941.15-315,723.70

Finding the Fourth Proportional to 615,196.90, 922,941.15 and 315,723.70

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Solution

The fourth proportional to 615,196.90, 922,941.15 and 315,723.70 is: 473,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,196.90 : 922,941.15 = 315,723.70 : x
  2. Step 2: Convert to fraction form
    615,196.90/922,941.15 = 315,723.70/x
  3. Step 3: Cross multiply
    615,196.90x = 922,941.15 × 315,723.70
  4. Step 4: Simplify right side
    615,196.90x = 291,394,394,760.26
  5. Step 5: Solve for x
    x = 291,394,394,760.26/615,196.90
  6. Step 6: Final answer
    x = 473,660.38

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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.