Home / 1,233,939.80-1,702,923.72-690,126.20

Finding the Fourth Proportional to 1,233,939.80, 1,702,923.72 and 690,126.20

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Solution

The fourth proportional to 1,233,939.80, 1,702,923.72 and 690,126.20 is: 952,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,939.80 : 1,702,923.72 = 690,126.20 : x
  2. Step 2: Convert to fraction form
    1,233,939.80/1,702,923.72 = 690,126.20/x
  3. Step 3: Cross multiply
    1,233,939.80x = 1,702,923.72 × 690,126.20
  4. Step 4: Simplify right side
    1,233,939.80x = 1,175,232,275,773.46
  5. Step 5: Solve for x
    x = 1,175,232,275,773.46/1,233,939.80
  6. Step 6: Final answer
    x = 952,422.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.