Home / 918,687.30-1,374,920.55-806,712.90

Finding the Fourth Proportional to 918,687.30, 1,374,920.55 and 806,712.90

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Solution

The fourth proportional to 918,687.30, 1,374,920.55 and 806,712.90 is: 1,207,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,687.30 : 1,374,920.55 = 806,712.90 : x
  2. Step 2: Convert to fraction form
    918,687.30/1,374,920.55 = 806,712.90/x
  3. Step 3: Cross multiply
    918,687.30x = 1,374,920.55 × 806,712.90
  4. Step 4: Simplify right side
    918,687.30x = 1,109,166,144,160.10
  5. Step 5: Solve for x
    x = 1,109,166,144,160.10/918,687.30
  6. Step 6: Final answer
    x = 1,207,338.06

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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.