Home / 868,200.90-1,301,863.95-513,323.70

Finding the Fourth Proportional to 868,200.90, 1,301,863.95 and 513,323.70

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Solution

The fourth proportional to 868,200.90, 1,301,863.95 and 513,323.70 is: 769,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,200.90 : 1,301,863.95 = 513,323.70 : x
  2. Step 2: Convert to fraction form
    868,200.90/1,301,863.95 = 513,323.70/x
  3. Step 3: Cross multiply
    868,200.90x = 1,301,863.95 × 513,323.70
  4. Step 4: Simplify right side
    868,200.90x = 668,277,619,710.62
  5. Step 5: Solve for x
    x = 668,277,619,710.62/868,200.90
  6. Step 6: Final answer
    x = 769,726.94

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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.