Home / 1,145,787.30-1,581,231.34-783,970.02

Finding the Fourth Proportional to 1,145,787.30, 1,581,231.34 and 783,970.02

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Solution

The fourth proportional to 1,145,787.30, 1,581,231.34 and 783,970.02 is: 1,081,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,787.30 : 1,581,231.34 = 783,970.02 : x
  2. Step 2: Convert to fraction form
    1,145,787.30/1,581,231.34 = 783,970.02/x
  3. Step 3: Cross multiply
    1,145,787.30x = 1,581,231.34 × 783,970.02
  4. Step 4: Simplify right side
    1,145,787.30x = 1,239,637,965,244.43
  5. Step 5: Solve for x
    x = 1,239,637,965,244.43/1,145,787.30
  6. Step 6: Final answer
    x = 1,081,909.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.