Home / 708,115.95-1,062,616.80-287,391.83

Finding the Fourth Proportional to 708,115.95, 1,062,616.80 and 287,391.83

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Solution

The fourth proportional to 708,115.95, 1,062,616.80 and 287,391.83 is: 431,267.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,115.95 : 1,062,616.80 = 287,391.83 : x
  2. Step 2: Convert to fraction form
    708,115.95/1,062,616.80 = 287,391.83/x
  3. Step 3: Cross multiply
    708,115.95x = 1,062,616.80 × 287,391.83
  4. Step 4: Simplify right side
    708,115.95x = 305,387,386,740.74
  5. Step 5: Solve for x
    x = 305,387,386,740.74/708,115.95
  6. Step 6: Final answer
    x = 431,267.49

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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.