Home / 816,904.38-1,127,321.80-449,373.61

Finding the Fourth Proportional to 816,904.38, 1,127,321.80 and 449,373.61

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Solution

The fourth proportional to 816,904.38, 1,127,321.80 and 449,373.61 is: 620,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,904.38 : 1,127,321.80 = 449,373.61 : x
  2. Step 2: Convert to fraction form
    816,904.38/1,127,321.80 = 449,373.61/x
  3. Step 3: Cross multiply
    816,904.38x = 1,127,321.80 × 449,373.61
  4. Step 4: Simplify right side
    816,904.38x = 506,588,659,014.22
  5. Step 5: Solve for x
    x = 506,588,659,014.22/816,904.38
  6. Step 6: Final answer
    x = 620,132.14

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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.