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Finding the Fourth Proportional to 835,739.80, 1,253,139 and 266,987.32

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Solution

The fourth proportional to 835,739.80, 1,253,139 and 266,987.32 is: 400,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,739.80 : 1,253,139 = 266,987.32 : x
  2. Step 2: Convert to fraction form
    835,739.80/1,253,139 = 266,987.32/x
  3. Step 3: Cross multiply
    835,739.80x = 1,253,139 × 266,987.32
  4. Step 4: Simplify right side
    835,739.80x = 334,572,223,197.48
  5. Step 5: Solve for x
    x = 334,572,223,197.48/835,739.80
  6. Step 6: Final answer
    x = 400,330.61

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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.