Home / 1,086,680.80-1,630,013.10-328,520.80

Finding the Fourth Proportional to 1,086,680.80, 1,630,013.10 and 328,520.80

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Solution

The fourth proportional to 1,086,680.80, 1,630,013.10 and 328,520.80 is: 492,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,680.80 : 1,630,013.10 = 328,520.80 : x
  2. Step 2: Convert to fraction form
    1,086,680.80/1,630,013.10 = 328,520.80/x
  3. Step 3: Cross multiply
    1,086,680.80x = 1,630,013.10 × 328,520.80
  4. Step 4: Simplify right side
    1,086,680.80x = 535,493,207,622.48
  5. Step 5: Solve for x
    x = 535,493,207,622.48/1,086,680.80
  6. Step 6: Final answer
    x = 492,778.75

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Double scale
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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.