Home / 1,218,363.41-1,680,325.20-913,167.56

Finding the Fourth Proportional to 1,218,363.41, 1,680,325.20 and 913,167.56

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Solution

The fourth proportional to 1,218,363.41, 1,680,325.20 and 913,167.56 is: 1,259,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,363.41 : 1,680,325.20 = 913,167.56 : x
  2. Step 2: Convert to fraction form
    1,218,363.41/1,680,325.20 = 913,167.56/x
  3. Step 3: Cross multiply
    1,218,363.41x = 1,680,325.20 × 913,167.56
  4. Step 4: Simplify right side
    1,218,363.41x = 1,534,418,454,488.89
  5. Step 5: Solve for x
    x = 1,534,418,454,488.89/1,218,363.41
  6. Step 6: Final answer
    x = 1,259,409.51

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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.