Home / 721,851.08-1,082,167.52-455,023.42

Finding the Fourth Proportional to 721,851.08, 1,082,167.52 and 455,023.42

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Solution

The fourth proportional to 721,851.08, 1,082,167.52 and 455,023.42 is: 682,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,851.08 : 1,082,167.52 = 455,023.42 : x
  2. Step 2: Convert to fraction form
    721,851.08/1,082,167.52 = 455,023.42/x
  3. Step 3: Cross multiply
    721,851.08x = 1,082,167.52 × 455,023.42
  4. Step 4: Simplify right side
    721,851.08x = 492,411,565,963.32
  5. Step 5: Solve for x
    x = 492,411,565,963.32/721,851.08
  6. Step 6: Final answer
    x = 682,151.18

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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.