Home / 868,229.40-1,302,344.10-513,643.80

Finding the Fourth Proportional to 868,229.40, 1,302,344.10 and 513,643.80

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Solution

The fourth proportional to 868,229.40, 1,302,344.10 and 513,643.80 is: 770,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,229.40 : 1,302,344.10 = 513,643.80 : x
  2. Step 2: Convert to fraction form
    868,229.40/1,302,344.10 = 513,643.80/x
  3. Step 3: Cross multiply
    868,229.40x = 1,302,344.10 × 513,643.80
  4. Step 4: Simplify right side
    868,229.40x = 668,940,972,431.58
  5. Step 5: Solve for x
    x = 668,940,972,431.58/868,229.40
  6. Step 6: Final answer
    x = 770,465.70

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Double scale
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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.