Home / 721,613.25-1,082,397.51-342,806.58

Finding the Fourth Proportional to 721,613.25, 1,082,397.51 and 342,806.58

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Solution

The fourth proportional to 721,613.25, 1,082,397.51 and 342,806.58 is: 514,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,613.25 : 1,082,397.51 = 342,806.58 : x
  2. Step 2: Convert to fraction form
    721,613.25/1,082,397.51 = 342,806.58/x
  3. Step 3: Cross multiply
    721,613.25x = 1,082,397.51 × 342,806.58
  4. Step 4: Simplify right side
    721,613.25x = 371,052,988,603.62
  5. Step 5: Solve for x
    x = 371,052,988,603.62/721,613.25
  6. Step 6: Final answer
    x = 514,199.25

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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.