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Finding the Fourth Proportional to 552,901.53, 763,028.67 and 311,199.76

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Solution

The fourth proportional to 552,901.53, 763,028.67 and 311,199.76 is: 429,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,901.53 : 763,028.67 = 311,199.76 : x
  2. Step 2: Convert to fraction form
    552,901.53/763,028.67 = 311,199.76/x
  3. Step 3: Cross multiply
    552,901.53x = 763,028.67 × 311,199.76
  4. Step 4: Simplify right side
    552,901.53x = 237,454,338,977.12
  5. Step 5: Solve for x
    x = 237,454,338,977.12/552,901.53
  6. Step 6: Final answer
    x = 429,469.49

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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.