Home / 859,195.40-1,288,307.10-326,733.80

Finding the Fourth Proportional to 859,195.40, 1,288,307.10 and 326,733.80

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Solution

The fourth proportional to 859,195.40, 1,288,307.10 and 326,733.80 is: 489,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,195.40 : 1,288,307.10 = 326,733.80 : x
  2. Step 2: Convert to fraction form
    859,195.40/1,288,307.10 = 326,733.80/x
  3. Step 3: Cross multiply
    859,195.40x = 1,288,307.10 × 326,733.80
  4. Step 4: Simplify right side
    859,195.40x = 420,933,474,349.98
  5. Step 5: Solve for x
    x = 420,933,474,349.98/859,195.40
  6. Step 6: Final answer
    x = 489,915.88

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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.