Home / 1,218,508.89-1,681,318.17-702,190.39

Finding the Fourth Proportional to 1,218,508.89, 1,681,318.17 and 702,190.39

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Solution

The fourth proportional to 1,218,508.89, 1,681,318.17 and 702,190.39 is: 968,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,508.89 : 1,681,318.17 = 702,190.39 : x
  2. Step 2: Convert to fraction form
    1,218,508.89/1,681,318.17 = 702,190.39/x
  3. Step 3: Cross multiply
    1,218,508.89x = 1,681,318.17 × 702,190.39
  4. Step 4: Simplify right side
    1,218,508.89x = 1,180,605,461,506.39
  5. Step 5: Solve for x
    x = 1,180,605,461,506.39/1,218,508.89
  6. Step 6: Final answer
    x = 968,893.60

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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.