Home / 489,228.12-733,472.08-320,790.85

Finding the Fourth Proportional to 489,228.12, 733,472.08 and 320,790.85

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Solution

The fourth proportional to 489,228.12, 733,472.08 and 320,790.85 is: 480,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,228.12 : 733,472.08 = 320,790.85 : x
  2. Step 2: Convert to fraction form
    489,228.12/733,472.08 = 320,790.85/x
  3. Step 3: Cross multiply
    489,228.12x = 733,472.08 × 320,790.85
  4. Step 4: Simplify right side
    489,228.12x = 235,291,129,358.81
  5. Step 5: Solve for x
    x = 235,291,129,358.81/489,228.12
  6. Step 6: Final answer
    x = 480,943.59

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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.