Home / 3,087,378.97-4,631,078.48-781,870.82

Finding the Fourth Proportional to 3,087,378.97, 4,631,078.48 and 781,870.82

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Solution

The fourth proportional to 3,087,378.97, 4,631,078.48 and 781,870.82 is: 1,172,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087,378.97 : 4,631,078.48 = 781,870.82 : x
  2. Step 2: Convert to fraction form
    3,087,378.97/4,631,078.48 = 781,870.82/x
  3. Step 3: Cross multiply
    3,087,378.97x = 4,631,078.48 × 781,870.82
  4. Step 4: Simplify right side
    3,087,378.97x = 3,620,905,101,577.21
  5. Step 5: Solve for x
    x = 3,620,905,101,577.21/3,087,378.97
  6. Step 6: Final answer
    x = 1,172,808.76

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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.