Home / 1,373,128.80-2,060,276.40-662,791.20

Finding the Fourth Proportional to 1,373,128.80, 2,060,276.40 and 662,791.20

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Solution

The fourth proportional to 1,373,128.80, 2,060,276.40 and 662,791.20 is: 994,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,128.80 : 2,060,276.40 = 662,791.20 : x
  2. Step 2: Convert to fraction form
    1,373,128.80/2,060,276.40 = 662,791.20/x
  3. Step 3: Cross multiply
    1,373,128.80x = 2,060,276.40 × 662,791.20
  4. Step 4: Simplify right side
    1,373,128.80x = 1,365,533,067,487.68
  5. Step 5: Solve for x
    x = 1,365,533,067,487.68/1,373,128.80
  6. Step 6: Final answer
    x = 994,468.30

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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.