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Finding the Fourth Proportional to 479,592.68, 662,103.06 and 288,653

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Solution

The fourth proportional to 479,592.68, 662,103.06 and 288,653 is: 398,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,592.68 : 662,103.06 = 288,653 : x
  2. Step 2: Convert to fraction form
    479,592.68/662,103.06 = 288,653/x
  3. Step 3: Cross multiply
    479,592.68x = 662,103.06 × 288,653
  4. Step 4: Simplify right side
    479,592.68x = 191,118,034,578.18
  5. Step 5: Solve for x
    x = 191,118,034,578.18/479,592.68
  6. Step 6: Final answer
    x = 398,500.73

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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.