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Finding the Fourth Proportional to 361,715.52, 544,695.60 and 315,520.32

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Solution

The fourth proportional to 361,715.52, 544,695.60 and 315,520.32 is: 475,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,715.52 : 544,695.60 = 315,520.32 : x
  2. Step 2: Convert to fraction form
    361,715.52/544,695.60 = 315,520.32/x
  3. Step 3: Cross multiply
    361,715.52x = 544,695.60 × 315,520.32
  4. Step 4: Simplify right side
    361,715.52x = 171,862,530,014.59
  5. Step 5: Solve for x
    x = 171,862,530,014.59/361,715.52
  6. Step 6: Final answer
    x = 475,131.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.