Home / 898,458.30-1,347,687.45-721,311.30

Finding the Fourth Proportional to 898,458.30, 1,347,687.45 and 721,311.30

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Solution

The fourth proportional to 898,458.30, 1,347,687.45 and 721,311.30 is: 1,081,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,458.30 : 1,347,687.45 = 721,311.30 : x
  2. Step 2: Convert to fraction form
    898,458.30/1,347,687.45 = 721,311.30/x
  3. Step 3: Cross multiply
    898,458.30x = 1,347,687.45 × 721,311.30
  4. Step 4: Simplify right side
    898,458.30x = 972,102,186,553.19
  5. Step 5: Solve for x
    x = 972,102,186,553.19/898,458.30
  6. Step 6: Final answer
    x = 1,081,966.95

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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.