Home / 897,428.20-1,346,142.30-861,998.80

Finding the Fourth Proportional to 897,428.20, 1,346,142.30 and 861,998.80

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Solution

The fourth proportional to 897,428.20, 1,346,142.30 and 861,998.80 is: 1,292,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,428.20 : 1,346,142.30 = 861,998.80 : x
  2. Step 2: Convert to fraction form
    897,428.20/1,346,142.30 = 861,998.80/x
  3. Step 3: Cross multiply
    897,428.20x = 1,346,142.30 × 861,998.80
  4. Step 4: Simplify right side
    897,428.20x = 1,160,373,047,229.24
  5. Step 5: Solve for x
    x = 1,160,373,047,229.24/897,428.20
  6. Step 6: Final answer
    x = 1,292,998.20

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Double scale
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Similar ratio
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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.