Home / 2,656,726.40-3,985,672.80-1,309,534.40

Finding the Fourth Proportional to 2,656,726.40, 3,985,672.80 and 1,309,534.40

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Solution

The fourth proportional to 2,656,726.40, 3,985,672.80 and 1,309,534.40 is: 1,964,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656,726.40 : 3,985,672.80 = 1,309,534.40 : x
  2. Step 2: Convert to fraction form
    2,656,726.40/3,985,672.80 = 1,309,534.40/x
  3. Step 3: Cross multiply
    2,656,726.40x = 3,985,672.80 × 1,309,534.40
  4. Step 4: Simplify right side
    2,656,726.40x = 5,219,375,638,744.32
  5. Step 5: Solve for x
    x = 5,219,375,638,744.32/2,656,726.40
  6. Step 6: Final answer
    x = 1,964,589.07

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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.