Home / 885,799.20-1,328,698.80-862,471.20

Finding the Fourth Proportional to 885,799.20, 1,328,698.80 and 862,471.20

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Solution

The fourth proportional to 885,799.20, 1,328,698.80 and 862,471.20 is: 1,293,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,799.20 : 1,328,698.80 = 862,471.20 : x
  2. Step 2: Convert to fraction form
    885,799.20/1,328,698.80 = 862,471.20/x
  3. Step 3: Cross multiply
    885,799.20x = 1,328,698.80 × 862,471.20
  4. Step 4: Simplify right side
    885,799.20x = 1,145,964,448,474.56
  5. Step 5: Solve for x
    x = 1,145,964,448,474.56/885,799.20
  6. Step 6: Final answer
    x = 1,293,706.80

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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.