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Finding the Fourth Proportional to 553,799.44, 830,687.24 and 154,429.58

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Solution

The fourth proportional to 553,799.44, 830,687.24 and 154,429.58 is: 231,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,799.44 : 830,687.24 = 154,429.58 : x
  2. Step 2: Convert to fraction form
    553,799.44/830,687.24 = 154,429.58/x
  3. Step 3: Cross multiply
    553,799.44x = 830,687.24 × 154,429.58
  4. Step 4: Simplify right side
    553,799.44x = 128,282,681,584.56
  5. Step 5: Solve for x
    x = 128,282,681,584.56/553,799.44
  6. Step 6: Final answer
    x = 231,641.05

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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.