Home / 708,115.89-1,062,616.71-287,391.77

Finding the Fourth Proportional to 708,115.89, 1,062,616.71 and 287,391.77

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Solution

The fourth proportional to 708,115.89, 1,062,616.71 and 287,391.77 is: 431,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,115.89 : 1,062,616.71 = 287,391.77 : x
  2. Step 2: Convert to fraction form
    708,115.89/1,062,616.71 = 287,391.77/x
  3. Step 3: Cross multiply
    708,115.89x = 1,062,616.71 × 287,391.77
  4. Step 4: Simplify right side
    708,115.89x = 305,387,291,805.39
  5. Step 5: Solve for x
    x = 305,387,291,805.39/708,115.89
  6. Step 6: Final answer
    x = 431,267.39

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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.