Home / 712,427.40-1,068,641.10-681,712.20

Finding the Fourth Proportional to 712,427.40, 1,068,641.10 and 681,712.20

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Solution

The fourth proportional to 712,427.40, 1,068,641.10 and 681,712.20 is: 1,022,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,427.40 : 1,068,641.10 = 681,712.20 : x
  2. Step 2: Convert to fraction form
    712,427.40/1,068,641.10 = 681,712.20/x
  3. Step 3: Cross multiply
    712,427.40x = 1,068,641.10 × 681,712.20
  4. Step 4: Simplify right side
    712,427.40x = 728,505,675,291.42
  5. Step 5: Solve for x
    x = 728,505,675,291.42/712,427.40
  6. Step 6: Final answer
    x = 1,022,568.30

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Double scale
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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.