Home / 1,137,974.73-1,707,216.30-428,008.92

Finding the Fourth Proportional to 1,137,974.73, 1,707,216.30 and 428,008.92

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Solution

The fourth proportional to 1,137,974.73, 1,707,216.30 and 428,008.92 is: 642,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,974.73 : 1,707,216.30 = 428,008.92 : x
  2. Step 2: Convert to fraction form
    1,137,974.73/1,707,216.30 = 428,008.92/x
  3. Step 3: Cross multiply
    1,137,974.73x = 1,707,216.30 × 428,008.92
  4. Step 4: Simplify right side
    1,137,974.73x = 730,703,804,769.40
  5. Step 5: Solve for x
    x = 730,703,804,769.40/1,137,974.73
  6. Step 6: Final answer
    x = 642,108.99

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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.