Home / 551,434.20-827,637.30-326,513.40

Finding the Fourth Proportional to 551,434.20, 827,637.30 and 326,513.40

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Solution

The fourth proportional to 551,434.20, 827,637.30 and 326,513.40 is: 490,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,434.20 : 827,637.30 = 326,513.40 : x
  2. Step 2: Convert to fraction form
    551,434.20/827,637.30 = 326,513.40/x
  3. Step 3: Cross multiply
    551,434.20x = 827,637.30 × 326,513.40
  4. Step 4: Simplify right side
    551,434.20x = 270,234,668,789.82
  5. Step 5: Solve for x
    x = 270,234,668,789.82/551,434.20
  6. Step 6: Final answer
    x = 490,057.87

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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.