Home / 679,992.03-1,019,613.42-280,541.88

Finding the Fourth Proportional to 679,992.03, 1,019,613.42 and 280,541.88

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Solution

The fourth proportional to 679,992.03, 1,019,613.42 and 280,541.88 is: 420,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,992.03 : 1,019,613.42 = 280,541.88 : x
  2. Step 2: Convert to fraction form
    679,992.03/1,019,613.42 = 280,541.88/x
  3. Step 3: Cross multiply
    679,992.03x = 1,019,613.42 × 280,541.88
  4. Step 4: Simplify right side
    679,992.03x = 286,044,265,720.03
  5. Step 5: Solve for x
    x = 286,044,265,720.03/679,992.03
  6. Step 6: Final answer
    x = 420,658.26

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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.