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Finding the Fourth Proportional to 529,410.80, 794,116.20 and 213,705.20

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Solution

The fourth proportional to 529,410.80, 794,116.20 and 213,705.20 is: 320,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,410.80 : 794,116.20 = 213,705.20 : x
  2. Step 2: Convert to fraction form
    529,410.80/794,116.20 = 213,705.20/x
  3. Step 3: Cross multiply
    529,410.80x = 794,116.20 × 213,705.20
  4. Step 4: Simplify right side
    529,410.80x = 169,706,761,344.24
  5. Step 5: Solve for x
    x = 169,706,761,344.24/529,410.80
  6. Step 6: Final answer
    x = 320,557.80

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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.