Home / 2,578,643.10-3,867,964.65-781,437.58

Finding the Fourth Proportional to 2,578,643.10, 3,867,964.65 and 781,437.58

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Solution

The fourth proportional to 2,578,643.10, 3,867,964.65 and 781,437.58 is: 1,172,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,643.10 : 3,867,964.65 = 781,437.58 : x
  2. Step 2: Convert to fraction form
    2,578,643.10/3,867,964.65 = 781,437.58/x
  3. Step 3: Cross multiply
    2,578,643.10x = 3,867,964.65 × 781,437.58
  4. Step 4: Simplify right side
    2,578,643.10x = 3,022,572,925,951.64
  5. Step 5: Solve for x
    x = 3,022,572,925,951.64/2,578,643.10
  6. Step 6: Final answer
    x = 1,172,156.37

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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.