Home / 755,791.38-1,128,157.50-666,113.88

Finding the Fourth Proportional to 755,791.38, 1,128,157.50 and 666,113.88

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Solution

The fourth proportional to 755,791.38, 1,128,157.50 and 666,113.88 is: 994,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,791.38 : 1,128,157.50 = 666,113.88 : x
  2. Step 2: Convert to fraction form
    755,791.38/1,128,157.50 = 666,113.88/x
  3. Step 3: Cross multiply
    755,791.38x = 1,128,157.50 × 666,113.88
  4. Step 4: Simplify right side
    755,791.38x = 751,481,369,576.10
  5. Step 5: Solve for x
    x = 751,481,369,576.10/755,791.38
  6. Step 6: Final answer
    x = 994,297.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.