Home / 708,468.12-1,062,716.76-287,456.04

Finding the Fourth Proportional to 708,468.12, 1,062,716.76 and 287,456.04

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Solution

The fourth proportional to 708,468.12, 1,062,716.76 and 287,456.04 is: 431,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,468.12 : 1,062,716.76 = 287,456.04 : x
  2. Step 2: Convert to fraction form
    708,468.12/1,062,716.76 = 287,456.04/x
  3. Step 3: Cross multiply
    708,468.12x = 1,062,716.76 × 287,456.04
  4. Step 4: Simplify right side
    708,468.12x = 305,484,351,471.23
  5. Step 5: Solve for x
    x = 305,484,351,471.23/708,468.12
  6. Step 6: Final answer
    x = 431,189.98

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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.