Home / 489,121.40-733,682.10-322,909.40

Finding the Fourth Proportional to 489,121.40, 733,682.10 and 322,909.40

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Solution

The fourth proportional to 489,121.40, 733,682.10 and 322,909.40 is: 484,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,121.40 : 733,682.10 = 322,909.40 : x
  2. Step 2: Convert to fraction form
    489,121.40/733,682.10 = 322,909.40/x
  3. Step 3: Cross multiply
    489,121.40x = 733,682.10 × 322,909.40
  4. Step 4: Simplify right side
    489,121.40x = 236,912,846,701.74
  5. Step 5: Solve for x
    x = 236,912,846,701.74/489,121.40
  6. Step 6: Final answer
    x = 484,364.10

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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.