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Finding the Fourth Proportional to 552,618.70, 829,365.45 and 215,820.70

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Solution

The fourth proportional to 552,618.70, 829,365.45 and 215,820.70 is: 323,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,618.70 : 829,365.45 = 215,820.70 : x
  2. Step 2: Convert to fraction form
    552,618.70/829,365.45 = 215,820.70/x
  3. Step 3: Cross multiply
    552,618.70x = 829,365.45 × 215,820.70
  4. Step 4: Simplify right side
    552,618.70x = 178,994,231,974.82
  5. Step 5: Solve for x
    x = 178,994,231,974.82/552,618.70
  6. Step 6: Final answer
    x = 323,901.87

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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.