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Finding the Fourth Proportional to 527,649.96, 728,170.25 and 323,813.46

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Solution

The fourth proportional to 527,649.96, 728,170.25 and 323,813.46 is: 446,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,649.96 : 728,170.25 = 323,813.46 : x
  2. Step 2: Convert to fraction form
    527,649.96/728,170.25 = 323,813.46/x
  3. Step 3: Cross multiply
    527,649.96x = 728,170.25 × 323,813.46
  4. Step 4: Simplify right side
    527,649.96x = 235,791,328,121.57
  5. Step 5: Solve for x
    x = 235,791,328,121.57/527,649.96
  6. Step 6: Final answer
    x = 446,870.74

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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.