Home / 721,601.74-1,082,380.28-342,795.12

Finding the Fourth Proportional to 721,601.74, 1,082,380.28 and 342,795.12

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Solution

The fourth proportional to 721,601.74, 1,082,380.28 and 342,795.12 is: 514,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,601.74 : 1,082,380.28 = 342,795.12 : x
  2. Step 2: Convert to fraction form
    721,601.74/1,082,380.28 = 342,795.12/x
  3. Step 3: Cross multiply
    721,601.74x = 1,082,380.28 × 342,795.12
  4. Step 4: Simplify right side
    721,601.74x = 371,034,677,968.23
  5. Step 5: Solve for x
    x = 371,034,677,968.23/721,601.74
  6. Step 6: Final answer
    x = 514,182.07

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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.