Home / 1,276,143.40-1,761,155.22-703,182.88

Finding the Fourth Proportional to 1,276,143.40, 1,761,155.22 and 703,182.88

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Solution

The fourth proportional to 1,276,143.40, 1,761,155.22 and 703,182.88 is: 970,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,143.40 : 1,761,155.22 = 703,182.88 : x
  2. Step 2: Convert to fraction form
    1,276,143.40/1,761,155.22 = 703,182.88/x
  3. Step 3: Cross multiply
    1,276,143.40x = 1,761,155.22 × 703,182.88
  4. Step 4: Simplify right side
    1,276,143.40x = 1,238,414,199,726.63
  5. Step 5: Solve for x
    x = 1,238,414,199,726.63/1,276,143.40
  6. Step 6: Final answer
    x = 970,434.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.