Home / 1,231,811.60-1,846,918.20-521,646.80

Finding the Fourth Proportional to 1,231,811.60, 1,846,918.20 and 521,646.80

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Solution

The fourth proportional to 1,231,811.60, 1,846,918.20 and 521,646.80 is: 782,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,811.60 : 1,846,918.20 = 521,646.80 : x
  2. Step 2: Convert to fraction form
    1,231,811.60/1,846,918.20 = 521,646.80/x
  3. Step 3: Cross multiply
    1,231,811.60x = 1,846,918.20 × 521,646.80
  4. Step 4: Simplify right side
    1,231,811.60x = 963,438,968,891.76
  5. Step 5: Solve for x
    x = 963,438,968,891.76/1,231,811.60
  6. Step 6: Final answer
    x = 782,131.76

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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.