Home / 1,377,998.76-1,902,170.07-918,947.46

Finding the Fourth Proportional to 1,377,998.76, 1,902,170.07 and 918,947.46

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Solution

The fourth proportional to 1,377,998.76, 1,902,170.07 and 918,947.46 is: 1,268,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,998.76 : 1,902,170.07 = 918,947.46 : x
  2. Step 2: Convert to fraction form
    1,377,998.76/1,902,170.07 = 918,947.46/x
  3. Step 3: Cross multiply
    1,377,998.76x = 1,902,170.07 × 918,947.46
  4. Step 4: Simplify right side
    1,377,998.76x = 1,747,994,354,314.52
  5. Step 5: Solve for x
    x = 1,747,994,354,314.52/1,377,998.76
  6. Step 6: Final answer
    x = 1,268,502.12

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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.