Home / 1,264,122.60-1,893,419.10-981,421.80

Finding the Fourth Proportional to 1,264,122.60, 1,893,419.10 and 981,421.80

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Solution

The fourth proportional to 1,264,122.60, 1,893,419.10 and 981,421.80 is: 1,469,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,122.60 : 1,893,419.10 = 981,421.80 : x
  2. Step 2: Convert to fraction form
    1,264,122.60/1,893,419.10 = 981,421.80/x
  3. Step 3: Cross multiply
    1,264,122.60x = 1,893,419.10 × 981,421.80
  4. Step 4: Simplify right side
    1,264,122.60x = 1,858,242,781,276.38
  5. Step 5: Solve for x
    x = 1,858,242,781,276.38/1,264,122.60
  6. Step 6: Final answer
    x = 1,469,986.20

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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.