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Finding the Fourth Proportional to 553,219.97, 829,611.60 and 268,826.27

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Solution

The fourth proportional to 553,219.97, 829,611.60 and 268,826.27 is: 403,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,219.97 : 829,611.60 = 268,826.27 : x
  2. Step 2: Convert to fraction form
    553,219.97/829,611.60 = 268,826.27/x
  3. Step 3: Cross multiply
    553,219.97x = 829,611.60 × 268,826.27
  4. Step 4: Simplify right side
    553,219.97x = 223,021,387,828.67
  5. Step 5: Solve for x
    x = 223,021,387,828.67/553,219.97
  6. Step 6: Final answer
    x = 403,133.30

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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.