Home / 478,839.72-660,793.50-274,895.52

Finding the Fourth Proportional to 478,839.72, 660,793.50 and 274,895.52

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Solution

The fourth proportional to 478,839.72, 660,793.50 and 274,895.52 is: 379,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,839.72 : 660,793.50 = 274,895.52 : x
  2. Step 2: Convert to fraction form
    478,839.72/660,793.50 = 274,895.52/x
  3. Step 3: Cross multiply
    478,839.72x = 660,793.50 × 274,895.52
  4. Step 4: Simplify right side
    478,839.72x = 181,649,172,795.12
  5. Step 5: Solve for x
    x = 181,649,172,795.12/478,839.72
  6. Step 6: Final answer
    x = 379,352.77

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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.