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Finding the Fourth Proportional to 578,006.32, 797,630.70 and 319,867.73

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Solution

The fourth proportional to 578,006.32, 797,630.70 and 319,867.73 is: 441,407.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,006.32 : 797,630.70 = 319,867.73 : x
  2. Step 2: Convert to fraction form
    578,006.32/797,630.70 = 319,867.73/x
  3. Step 3: Cross multiply
    578,006.32x = 797,630.70 × 319,867.73
  4. Step 4: Simplify right side
    578,006.32x = 255,136,321,387.31
  5. Step 5: Solve for x
    x = 255,136,321,387.31/578,006.32
  6. Step 6: Final answer
    x = 441,407.49

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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.