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Finding the Fourth Proportional to 653,235.59, 979,472.00 and 253,409.15

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Solution

The fourth proportional to 653,235.59, 979,472.00 and 253,409.15 is: 379,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,235.59 : 979,472.00 = 253,409.15 : x
  2. Step 2: Convert to fraction form
    653,235.59/979,472.00 = 253,409.15/x
  3. Step 3: Cross multiply
    653,235.59x = 979,472.00 × 253,409.15
  4. Step 4: Simplify right side
    653,235.59x = 248,207,170,051.00
  5. Step 5: Solve for x
    x = 248,207,170,051.00/653,235.59
  6. Step 6: Final answer
    x = 379,965.78

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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.