Home / 670,859.80-1,005,512.10-271,238.20

Finding the Fourth Proportional to 670,859.80, 1,005,512.10 and 271,238.20

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Solution

The fourth proportional to 670,859.80, 1,005,512.10 and 271,238.20 is: 406,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,859.80 : 1,005,512.10 = 271,238.20 : x
  2. Step 2: Convert to fraction form
    670,859.80/1,005,512.10 = 271,238.20/x
  3. Step 3: Cross multiply
    670,859.80x = 1,005,512.10 × 271,238.20
  4. Step 4: Simplify right side
    670,859.80x = 272,733,292,082.22
  5. Step 5: Solve for x
    x = 272,733,292,082.22/670,859.80
  6. Step 6: Final answer
    x = 406,542.91

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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.