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Finding the Fourth Proportional to 579,674.25, 869,604.30 and 180,407.34

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Solution

The fourth proportional to 579,674.25, 869,604.30 and 180,407.34 is: 270,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,674.25 : 869,604.30 = 180,407.34 : x
  2. Step 2: Convert to fraction form
    579,674.25/869,604.30 = 180,407.34/x
  3. Step 3: Cross multiply
    579,674.25x = 869,604.30 × 180,407.34
  4. Step 4: Simplify right side
    579,674.25x = 156,882,998,615.56
  5. Step 5: Solve for x
    x = 156,882,998,615.56/579,674.25
  6. Step 6: Final answer
    x = 270,639.93

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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.