Home / 1,377,996.76-1,902,167.31-918,945.46

Finding the Fourth Proportional to 1,377,996.76, 1,902,167.31 and 918,945.46

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Solution

The fourth proportional to 1,377,996.76, 1,902,167.31 and 918,945.46 is: 1,268,499.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,996.76 : 1,902,167.31 = 918,945.46 : x
  2. Step 2: Convert to fraction form
    1,377,996.76/1,902,167.31 = 918,945.46/x
  3. Step 3: Cross multiply
    1,377,996.76x = 1,902,167.31 × 918,945.46
  4. Step 4: Simplify right side
    1,377,996.76x = 1,747,988,013,684.91
  5. Step 5: Solve for x
    x = 1,747,988,013,684.91/1,377,996.76
  6. Step 6: Final answer
    x = 1,268,499.36

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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.