Home / 1,578,123.12-2,177,766.18-889,788.96

Finding the Fourth Proportional to 1,578,123.12, 2,177,766.18 and 889,788.96

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Solution

The fourth proportional to 1,578,123.12, 2,177,766.18 and 889,788.96 is: 1,227,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,123.12 : 2,177,766.18 = 889,788.96 : x
  2. Step 2: Convert to fraction form
    1,578,123.12/2,177,766.18 = 889,788.96/x
  3. Step 3: Cross multiply
    1,578,123.12x = 2,177,766.18 × 889,788.96
  4. Step 4: Simplify right side
    1,578,123.12x = 1,937,752,304,425.37
  5. Step 5: Solve for x
    x = 1,937,752,304,425.37/1,578,123.12
  6. Step 6: Final answer
    x = 1,227,884.11

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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.