Home / 1,278,052.30-1,914,745.65-778,833.10

Finding the Fourth Proportional to 1,278,052.30, 1,914,745.65 and 778,833.10

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Solution

The fourth proportional to 1,278,052.30, 1,914,745.65 and 778,833.10 is: 1,166,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,052.30 : 1,914,745.65 = 778,833.10 : x
  2. Step 2: Convert to fraction form
    1,278,052.30/1,914,745.65 = 778,833.10/x
  3. Step 3: Cross multiply
    1,278,052.30x = 1,914,745.65 × 778,833.10
  4. Step 4: Simplify right side
    1,278,052.30x = 1,491,267,290,301.02
  5. Step 5: Solve for x
    x = 1,491,267,290,301.02/1,278,052.30
  6. Step 6: Final answer
    x = 1,166,828.06

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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.