Home / 758,385.65-1,137,581.60-189,765.20

Finding the Fourth Proportional to 758,385.65, 1,137,581.60 and 189,765.20

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Solution

The fourth proportional to 758,385.65, 1,137,581.60 and 189,765.20 is: 284,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,385.65 : 1,137,581.60 = 189,765.20 : x
  2. Step 2: Convert to fraction form
    758,385.65/1,137,581.60 = 189,765.20/x
  3. Step 3: Cross multiply
    758,385.65x = 1,137,581.60 × 189,765.20
  4. Step 4: Simplify right side
    758,385.65x = 215,873,401,735.45
  5. Step 5: Solve for x
    x = 215,873,401,735.45/758,385.65
  6. Step 6: Final answer
    x = 284,648.58

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1.5x scale

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.