Home / 2,578,034.64-3,867,248.78-781,066.95

Finding the Fourth Proportional to 2,578,034.64, 3,867,248.78 and 781,066.95

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Solution

The fourth proportional to 2,578,034.64, 3,867,248.78 and 781,066.95 is: 1,171,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,034.64 : 3,867,248.78 = 781,066.95 : x
  2. Step 2: Convert to fraction form
    2,578,034.64/3,867,248.78 = 781,066.95/x
  3. Step 3: Cross multiply
    2,578,034.64x = 3,867,248.78 × 781,066.95
  4. Step 4: Simplify right side
    2,578,034.64x = 3,020,580,205,580.49
  5. Step 5: Solve for x
    x = 3,020,580,205,580.49/2,578,034.64
  6. Step 6: Final answer
    x = 1,171,660.05

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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.