Home / 2,578,032.89-3,867,246.15-781,065.20

Finding the Fourth Proportional to 2,578,032.89, 3,867,246.15 and 781,065.20

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Solution

The fourth proportional to 2,578,032.89, 3,867,246.15 and 781,065.20 is: 1,171,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,032.89 : 3,867,246.15 = 781,065.20 : x
  2. Step 2: Convert to fraction form
    2,578,032.89/3,867,246.15 = 781,065.20/x
  3. Step 3: Cross multiply
    2,578,032.89x = 3,867,246.15 × 781,065.20
  4. Step 4: Simplify right side
    2,578,032.89x = 3,020,571,387,598.98
  5. Step 5: Solve for x
    x = 3,020,571,387,598.98/2,578,032.89
  6. Step 6: Final answer
    x = 1,171,657.43

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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.