Home / 868,052.30-1,302,078.45-728,084.30

Finding the Fourth Proportional to 868,052.30, 1,302,078.45 and 728,084.30

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Solution

The fourth proportional to 868,052.30, 1,302,078.45 and 728,084.30 is: 1,092,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,052.30 : 1,302,078.45 = 728,084.30 : x
  2. Step 2: Convert to fraction form
    868,052.30/1,302,078.45 = 728,084.30/x
  3. Step 3: Cross multiply
    868,052.30x = 1,302,078.45 × 728,084.30
  4. Step 4: Simplify right side
    868,052.30x = 948,022,876,813.34
  5. Step 5: Solve for x
    x = 948,022,876,813.34/868,052.30
  6. Step 6: Final answer
    x = 1,092,126.45

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Double scale
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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.