Home / 868,251.60-1,302,377.40-831,387.60

Finding the Fourth Proportional to 868,251.60, 1,302,377.40 and 831,387.60

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Solution

The fourth proportional to 868,251.60, 1,302,377.40 and 831,387.60 is: 1,247,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,251.60 : 1,302,377.40 = 831,387.60 : x
  2. Step 2: Convert to fraction form
    868,251.60/1,302,377.40 = 831,387.60/x
  3. Step 3: Cross multiply
    868,251.60x = 1,302,377.40 × 831,387.60
  4. Step 4: Simplify right side
    868,251.60x = 1,082,780,420,880.24
  5. Step 5: Solve for x
    x = 1,082,780,420,880.24/868,251.60
  6. Step 6: Final answer
    x = 1,247,081.40

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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.