Home / 1,129,766.40-1,694,649.60-381,801.60

Finding the Fourth Proportional to 1,129,766.40, 1,694,649.60 and 381,801.60

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Solution

The fourth proportional to 1,129,766.40, 1,694,649.60 and 381,801.60 is: 572,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,766.40 : 1,694,649.60 = 381,801.60 : x
  2. Step 2: Convert to fraction form
    1,129,766.40/1,694,649.60 = 381,801.60/x
  3. Step 3: Cross multiply
    1,129,766.40x = 1,694,649.60 × 381,801.60
  4. Step 4: Simplify right side
    1,129,766.40x = 647,019,928,719.36
  5. Step 5: Solve for x
    x = 647,019,928,719.36/1,129,766.40
  6. Step 6: Final answer
    x = 572,702.40

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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.