Home / 1,441,013.89-1,988,613.92-787,658.57

Finding the Fourth Proportional to 1,441,013.89, 1,988,613.92 and 787,658.57

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Solution

The fourth proportional to 1,441,013.89, 1,988,613.92 and 787,658.57 is: 1,086,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,013.89 : 1,988,613.92 = 787,658.57 : x
  2. Step 2: Convert to fraction form
    1,441,013.89/1,988,613.92 = 787,658.57/x
  3. Step 3: Cross multiply
    1,441,013.89x = 1,988,613.92 × 787,658.57
  4. Step 4: Simplify right side
    1,441,013.89x = 1,566,348,796,509.29
  5. Step 5: Solve for x
    x = 1,566,348,796,509.29/1,441,013.89
  6. Step 6: Final answer
    x = 1,086,976.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.