Home / 1,231,246.80-1,846,870.20-521,787.60

Finding the Fourth Proportional to 1,231,246.80, 1,846,870.20 and 521,787.60

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Solution

The fourth proportional to 1,231,246.80, 1,846,870.20 and 521,787.60 is: 782,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,246.80 : 1,846,870.20 = 521,787.60 : x
  2. Step 2: Convert to fraction form
    1,231,246.80/1,846,870.20 = 521,787.60/x
  3. Step 3: Cross multiply
    1,231,246.80x = 1,846,870.20 × 521,787.60
  4. Step 4: Simplify right side
    1,231,246.80x = 963,673,969,169.52
  5. Step 5: Solve for x
    x = 963,673,969,169.52/1,231,246.80
  6. Step 6: Final answer
    x = 782,681.40

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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.