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Finding the Fourth Proportional to 408,869.60, 613,304.40 and 302,581.40

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Solution

The fourth proportional to 408,869.60, 613,304.40 and 302,581.40 is: 453,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,869.60 : 613,304.40 = 302,581.40 : x
  2. Step 2: Convert to fraction form
    408,869.60/613,304.40 = 302,581.40/x
  3. Step 3: Cross multiply
    408,869.60x = 613,304.40 × 302,581.40
  4. Step 4: Simplify right side
    408,869.60x = 185,574,503,978.16
  5. Step 5: Solve for x
    x = 185,574,503,978.16/408,869.60
  6. Step 6: Final answer
    x = 453,872.10

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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.