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Finding the Fourth Proportional to 479,859.61, 719,787.38 and 195,486.74

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Solution

The fourth proportional to 479,859.61, 719,787.38 and 195,486.74 is: 293,229.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,859.61 : 719,787.38 = 195,486.74 : x
  2. Step 2: Convert to fraction form
    479,859.61/719,787.38 = 195,486.74/x
  3. Step 3: Cross multiply
    479,859.61x = 719,787.38 × 195,486.74
  4. Step 4: Simplify right side
    479,859.61x = 140,708,888,409.34
  5. Step 5: Solve for x
    x = 140,708,888,409.34/479,859.61
  6. Step 6: Final answer
    x = 293,229.28

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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.