Home / 727,819.80-1,091,729.70-412,891.80

Finding the Fourth Proportional to 727,819.80, 1,091,729.70 and 412,891.80

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Solution

The fourth proportional to 727,819.80, 1,091,729.70 and 412,891.80 is: 619,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,819.80 : 1,091,729.70 = 412,891.80 : x
  2. Step 2: Convert to fraction form
    727,819.80/1,091,729.70 = 412,891.80/x
  3. Step 3: Cross multiply
    727,819.80x = 1,091,729.70 × 412,891.80
  4. Step 4: Simplify right side
    727,819.80x = 450,766,240,946.46
  5. Step 5: Solve for x
    x = 450,766,240,946.46/727,819.80
  6. Step 6: Final answer
    x = 619,337.70

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1.5x scale

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.