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Finding the Fourth Proportional to 553,474.52, 830,474.22 and 329,277.86

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Solution

The fourth proportional to 553,474.52, 830,474.22 and 329,277.86 is: 494,072.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,474.52 : 830,474.22 = 329,277.86 : x
  2. Step 2: Convert to fraction form
    553,474.52/830,474.22 = 329,277.86/x
  3. Step 3: Cross multiply
    553,474.52x = 830,474.22 × 329,277.86
  4. Step 4: Simplify right side
    553,474.52x = 273,456,773,946.77
  5. Step 5: Solve for x
    x = 273,456,773,946.77/553,474.52
  6. Step 6: Final answer
    x = 494,072.92

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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.