Home / 890,003.39-1,228,179.36-522,474.62

Finding the Fourth Proportional to 890,003.39, 1,228,179.36 and 522,474.62

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Solution

The fourth proportional to 890,003.39, 1,228,179.36 and 522,474.62 is: 721,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,003.39 : 1,228,179.36 = 522,474.62 : x
  2. Step 2: Convert to fraction form
    890,003.39/1,228,179.36 = 522,474.62/x
  3. Step 3: Cross multiply
    890,003.39x = 1,228,179.36 × 522,474.62
  4. Step 4: Simplify right side
    890,003.39x = 641,692,540,031.21
  5. Step 5: Solve for x
    x = 641,692,540,031.21/890,003.39
  6. Step 6: Final answer
    x = 721,000.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.