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Finding the Fourth Proportional to 576,165.20, 863,513.40 and 323,445.20

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Solution

The fourth proportional to 576,165.20, 863,513.40 and 323,445.20 is: 484,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,165.20 : 863,513.40 = 323,445.20 : x
  2. Step 2: Convert to fraction form
    576,165.20/863,513.40 = 323,445.20/x
  3. Step 3: Cross multiply
    576,165.20x = 863,513.40 × 323,445.20
  4. Step 4: Simplify right side
    576,165.20x = 279,299,264,365.68
  5. Step 5: Solve for x
    x = 279,299,264,365.68/576,165.20
  6. Step 6: Final answer
    x = 484,755.53

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1.5x scale

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.