Home / 1,070,512.80-1,605,769.20-439,879.20

Finding the Fourth Proportional to 1,070,512.80, 1,605,769.20 and 439,879.20

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Solution

The fourth proportional to 1,070,512.80, 1,605,769.20 and 439,879.20 is: 659,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,512.80 : 1,605,769.20 = 439,879.20 : x
  2. Step 2: Convert to fraction form
    1,070,512.80/1,605,769.20 = 439,879.20/x
  3. Step 3: Cross multiply
    1,070,512.80x = 1,605,769.20 × 439,879.20
  4. Step 4: Simplify right side
    1,070,512.80x = 706,344,471,080.64
  5. Step 5: Solve for x
    x = 706,344,471,080.64/1,070,512.80
  6. Step 6: Final answer
    x = 659,818.80

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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.