Home / 840,734.74-1,261,066.83-391,301.02

Finding the Fourth Proportional to 840,734.74, 1,261,066.83 and 391,301.02

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Solution

The fourth proportional to 840,734.74, 1,261,066.83 and 391,301.02 is: 586,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,734.74 : 1,261,066.83 = 391,301.02 : x
  2. Step 2: Convert to fraction form
    840,734.74/1,261,066.83 = 391,301.02/x
  3. Step 3: Cross multiply
    840,734.74x = 1,261,066.83 × 391,301.02
  4. Step 4: Simplify right side
    840,734.74x = 493,456,736,867.17
  5. Step 5: Solve for x
    x = 493,456,736,867.17/840,734.74
  6. Step 6: Final answer
    x = 586,935.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.