Home / 792,138.60-1,188,207.90-615,191.40

Finding the Fourth Proportional to 792,138.60, 1,188,207.90 and 615,191.40

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Solution

The fourth proportional to 792,138.60, 1,188,207.90 and 615,191.40 is: 922,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,138.60 : 1,188,207.90 = 615,191.40 : x
  2. Step 2: Convert to fraction form
    792,138.60/1,188,207.90 = 615,191.40/x
  3. Step 3: Cross multiply
    792,138.60x = 1,188,207.90 × 615,191.40
  4. Step 4: Simplify right side
    792,138.60x = 730,975,281,492.06
  5. Step 5: Solve for x
    x = 730,975,281,492.06/792,138.60
  6. Step 6: Final answer
    x = 922,787.10

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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.