Home / 645,787.60-968,766.04-213,361.40

Finding the Fourth Proportional to 645,787.60, 968,766.04 and 213,361.40

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Solution

The fourth proportional to 645,787.60, 968,766.04 and 213,361.40 is: 320,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,787.60 : 968,766.04 = 213,361.40 : x
  2. Step 2: Convert to fraction form
    645,787.60/968,766.04 = 213,361.40/x
  3. Step 3: Cross multiply
    645,787.60x = 968,766.04 × 213,361.40
  4. Step 4: Simplify right side
    645,787.60x = 206,697,278,566.86
  5. Step 5: Solve for x
    x = 206,697,278,566.86/645,787.60
  6. Step 6: Final answer
    x = 320,070.06

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Similar ratio
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1.5x scale

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.