Home / 721,565.42-1,082,028.17-384,543.25

Finding the Fourth Proportional to 721,565.42, 1,082,028.17 and 384,543.25

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Solution

The fourth proportional to 721,565.42, 1,082,028.17 and 384,543.25 is: 576,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,565.42 : 1,082,028.17 = 384,543.25 : x
  2. Step 2: Convert to fraction form
    721,565.42/1,082,028.17 = 384,543.25/x
  3. Step 3: Cross multiply
    721,565.42x = 1,082,028.17 × 384,543.25
  4. Step 4: Simplify right side
    721,565.42x = 416,086,627,339.64
  5. Step 5: Solve for x
    x = 416,086,627,339.64/721,565.42
  6. Step 6: Final answer
    x = 576,644.36

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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.