Home / 809,134.92-1,213,326.90-472,272.57

Finding the Fourth Proportional to 809,134.92, 1,213,326.90 and 472,272.57

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Solution

The fourth proportional to 809,134.92, 1,213,326.90 and 472,272.57 is: 708,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,134.92 : 1,213,326.90 = 472,272.57 : x
  2. Step 2: Convert to fraction form
    809,134.92/1,213,326.90 = 472,272.57/x
  3. Step 3: Cross multiply
    809,134.92x = 1,213,326.90 × 472,272.57
  4. Step 4: Simplify right side
    809,134.92x = 573,021,013,313.13
  5. Step 5: Solve for x
    x = 573,021,013,313.13/809,134.92
  6. Step 6: Final answer
    x = 708,189.70

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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.