Home / 804,401.40-1,206,602.10-520,966.20

Finding the Fourth Proportional to 804,401.40, 1,206,602.10 and 520,966.20

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Solution

The fourth proportional to 804,401.40, 1,206,602.10 and 520,966.20 is: 781,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,401.40 : 1,206,602.10 = 520,966.20 : x
  2. Step 2: Convert to fraction form
    804,401.40/1,206,602.10 = 520,966.20/x
  3. Step 3: Cross multiply
    804,401.40x = 1,206,602.10 × 520,966.20
  4. Step 4: Simplify right side
    804,401.40x = 628,598,910,949.02
  5. Step 5: Solve for x
    x = 628,598,910,949.02/804,401.40
  6. Step 6: Final answer
    x = 781,449.30

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Double scale
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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.