Home / 1,305,308.80-1,957,963.20-772,555.60

Finding the Fourth Proportional to 1,305,308.80, 1,957,963.20 and 772,555.60

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Solution

The fourth proportional to 1,305,308.80, 1,957,963.20 and 772,555.60 is: 1,158,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,308.80 : 1,957,963.20 = 772,555.60 : x
  2. Step 2: Convert to fraction form
    1,305,308.80/1,957,963.20 = 772,555.60/x
  3. Step 3: Cross multiply
    1,305,308.80x = 1,957,963.20 × 772,555.60
  4. Step 4: Simplify right side
    1,305,308.80x = 1,512,635,434,753.92
  5. Step 5: Solve for x
    x = 1,512,635,434,753.92/1,305,308.80
  6. Step 6: Final answer
    x = 1,158,833.40

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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.