Home / 890,119.20-1,228,359.45-482,229

Finding the Fourth Proportional to 890,119.20, 1,228,359.45 and 482,229

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Solution

The fourth proportional to 890,119.20, 1,228,359.45 and 482,229 is: 665,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,119.20 : 1,228,359.45 = 482,229 : x
  2. Step 2: Convert to fraction form
    890,119.20/1,228,359.45 = 482,229/x
  3. Step 3: Cross multiply
    890,119.20x = 1,228,359.45 × 482,229
  4. Step 4: Simplify right side
    890,119.20x = 592,350,549,214.05
  5. Step 5: Solve for x
    x = 592,350,549,214.05/890,119.20
  6. Step 6: Final answer
    x = 665,473.29

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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.