Home / 1,159,620.80-1,739,431.20-781,707.20

Finding the Fourth Proportional to 1,159,620.80, 1,739,431.20 and 781,707.20

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Solution

The fourth proportional to 1,159,620.80, 1,739,431.20 and 781,707.20 is: 1,172,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,620.80 : 1,739,431.20 = 781,707.20 : x
  2. Step 2: Convert to fraction form
    1,159,620.80/1,739,431.20 = 781,707.20/x
  3. Step 3: Cross multiply
    1,159,620.80x = 1,739,431.20 × 781,707.20
  4. Step 4: Simplify right side
    1,159,620.80x = 1,359,725,892,944.64
  5. Step 5: Solve for x
    x = 1,359,725,892,944.64/1,159,620.80
  6. Step 6: Final answer
    x = 1,172,560.80

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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.