Home / 890,000.25-1,228,206.29-482,102.12

Finding the Fourth Proportional to 890,000.25, 1,228,206.29 and 482,102.12

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Solution

The fourth proportional to 890,000.25, 1,228,206.29 and 482,102.12 is: 665,304.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,000.25 : 1,228,206.29 = 482,102.12 : x
  2. Step 2: Convert to fraction form
    890,000.25/1,228,206.29 = 482,102.12/x
  3. Step 3: Cross multiply
    890,000.25x = 1,228,206.29 × 482,102.12
  4. Step 4: Simplify right side
    890,000.25x = 592,120,847,654.79
  5. Step 5: Solve for x
    x = 592,120,847,654.79/890,000.25
  6. Step 6: Final answer
    x = 665,304.14

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Double scale
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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.