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Finding the Fourth Proportional to 587,490.75, 810,730.34 and 329,366.43

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Solution

The fourth proportional to 587,490.75, 810,730.34 and 329,366.43 is: 454,521.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,490.75 : 810,730.34 = 329,366.43 : x
  2. Step 2: Convert to fraction form
    587,490.75/810,730.34 = 329,366.43/x
  3. Step 3: Cross multiply
    587,490.75x = 810,730.34 × 329,366.43
  4. Step 4: Simplify right side
    587,490.75x = 267,027,357,778.49
  5. Step 5: Solve for x
    x = 267,027,357,778.49/587,490.75
  6. Step 6: Final answer
    x = 454,521.81

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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.