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Finding the Fourth Proportional to 553,473.52, 830,472.72 and 329,276.86

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Solution

The fourth proportional to 553,473.52, 830,472.72 and 329,276.86 is: 494,071.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,473.52 : 830,472.72 = 329,276.86 : x
  2. Step 2: Convert to fraction form
    553,473.52/830,472.72 = 329,276.86/x
  3. Step 3: Cross multiply
    553,473.52x = 830,472.72 × 329,276.86
  4. Step 4: Simplify right side
    553,473.52x = 273,455,449,557.26
  5. Step 5: Solve for x
    x = 273,455,449,557.26/553,473.52
  6. Step 6: Final answer
    x = 494,071.42

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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.