Home / 868,191.90-1,301,850.45-513,314.70

Finding the Fourth Proportional to 868,191.90, 1,301,850.45 and 513,314.70

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Solution

The fourth proportional to 868,191.90, 1,301,850.45 and 513,314.70 is: 769,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,191.90 : 1,301,850.45 = 513,314.70 : x
  2. Step 2: Convert to fraction form
    868,191.90/1,301,850.45 = 513,314.70/x
  3. Step 3: Cross multiply
    868,191.90x = 1,301,850.45 × 513,314.70
  4. Step 4: Simplify right side
    868,191.90x = 668,258,973,186.62
  5. Step 5: Solve for x
    x = 668,258,973,186.62/868,191.90
  6. Step 6: Final answer
    x = 769,713.44

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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.