Home / 820,257.20-1,230,385.80-460,058.30

Finding the Fourth Proportional to 820,257.20, 1,230,385.80 and 460,058.30

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Solution

The fourth proportional to 820,257.20, 1,230,385.80 and 460,058.30 is: 690,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,257.20 : 1,230,385.80 = 460,058.30 : x
  2. Step 2: Convert to fraction form
    820,257.20/1,230,385.80 = 460,058.30/x
  3. Step 3: Cross multiply
    820,257.20x = 1,230,385.80 × 460,058.30
  4. Step 4: Simplify right side
    820,257.20x = 566,049,199,492.14
  5. Step 5: Solve for x
    x = 566,049,199,492.14/820,257.20
  6. Step 6: Final answer
    x = 690,087.45

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Similar ratio
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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.