Home / 721,045.80-1,081,568.70-605,572.20

Finding the Fourth Proportional to 721,045.80, 1,081,568.70 and 605,572.20

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Solution

The fourth proportional to 721,045.80, 1,081,568.70 and 605,572.20 is: 908,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,045.80 : 1,081,568.70 = 605,572.20 : x
  2. Step 2: Convert to fraction form
    721,045.80/1,081,568.70 = 605,572.20/x
  3. Step 3: Cross multiply
    721,045.80x = 1,081,568.70 × 605,572.20
  4. Step 4: Simplify right side
    721,045.80x = 654,967,937,110.14
  5. Step 5: Solve for x
    x = 654,967,937,110.14/721,045.80
  6. Step 6: Final answer
    x = 908,358.30

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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.