Home / 1,129,765.40-1,694,648.10-381,800.60

Finding the Fourth Proportional to 1,129,765.40, 1,694,648.10 and 381,800.60

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Solution

The fourth proportional to 1,129,765.40, 1,694,648.10 and 381,800.60 is: 572,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,765.40 : 1,694,648.10 = 381,800.60 : x
  2. Step 2: Convert to fraction form
    1,129,765.40/1,694,648.10 = 381,800.60/x
  3. Step 3: Cross multiply
    1,129,765.40x = 1,694,648.10 × 381,800.60
  4. Step 4: Simplify right side
    1,129,765.40x = 647,017,661,368.86
  5. Step 5: Solve for x
    x = 647,017,661,368.86/1,129,765.40
  6. Step 6: Final answer
    x = 572,700.90

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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.