Home / 1,292,169.60-1,938,340.80-439,228.80

Finding the Fourth Proportional to 1,292,169.60, 1,938,340.80 and 439,228.80

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Solution

The fourth proportional to 1,292,169.60, 1,938,340.80 and 439,228.80 is: 658,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,169.60 : 1,938,340.80 = 439,228.80 : x
  2. Step 2: Convert to fraction form
    1,292,169.60/1,938,340.80 = 439,228.80/x
  3. Step 3: Cross multiply
    1,292,169.60x = 1,938,340.80 × 439,228.80
  4. Step 4: Simplify right side
    1,292,169.60x = 851,375,103,575.04
  5. Step 5: Solve for x
    x = 851,375,103,575.04/1,292,169.60
  6. Step 6: Final answer
    x = 658,872.57

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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.