Home / 1,439,635.29-2,160,761.63-766,279.86

Finding the Fourth Proportional to 1,439,635.29, 2,160,761.63 and 766,279.86

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Solution

The fourth proportional to 1,439,635.29, 2,160,761.63 and 766,279.86 is: 1,150,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,635.29 : 2,160,761.63 = 766,279.86 : x
  2. Step 2: Convert to fraction form
    1,439,635.29/2,160,761.63 = 766,279.86/x
  3. Step 3: Cross multiply
    1,439,635.29x = 2,160,761.63 × 766,279.86
  4. Step 4: Simplify right side
    1,439,635.29x = 1,655,748,115,498.37
  5. Step 5: Solve for x
    x = 1,655,748,115,498.37/1,439,635.29
  6. Step 6: Final answer
    x = 1,150,116.37

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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.