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Finding the Fourth Proportional to 653,508.08, 980,645.79 and 274,399.66

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Solution

The fourth proportional to 653,508.08, 980,645.79 and 274,399.66 is: 411,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,508.08 : 980,645.79 = 274,399.66 : x
  2. Step 2: Convert to fraction form
    653,508.08/980,645.79 = 274,399.66/x
  3. Step 3: Cross multiply
    653,508.08x = 980,645.79 × 274,399.66
  4. Step 4: Simplify right side
    653,508.08x = 269,088,868,904.82
  5. Step 5: Solve for x
    x = 269,088,868,904.82/653,508.08
  6. Step 6: Final answer
    x = 411,760.59

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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.