Home / 1,538,623.18-2,123,306.45-840,918.03

Finding the Fourth Proportional to 1,538,623.18, 2,123,306.45 and 840,918.03

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Solution

The fourth proportional to 1,538,623.18, 2,123,306.45 and 840,918.03 is: 1,160,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,623.18 : 2,123,306.45 = 840,918.03 : x
  2. Step 2: Convert to fraction form
    1,538,623.18/2,123,306.45 = 840,918.03/x
  3. Step 3: Cross multiply
    1,538,623.18x = 2,123,306.45 × 840,918.03
  4. Step 4: Simplify right side
    1,538,623.18x = 1,785,526,677,020.29
  5. Step 5: Solve for x
    x = 1,785,526,677,020.29/1,538,623.18
  6. Step 6: Final answer
    x = 1,160,470.41

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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.