Home / 1,322,969.10-1,980,517.05-790,215.90

Finding the Fourth Proportional to 1,322,969.10, 1,980,517.05 and 790,215.90

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Solution

The fourth proportional to 1,322,969.10, 1,980,517.05 and 790,215.90 is: 1,182,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,969.10 : 1,980,517.05 = 790,215.90 : x
  2. Step 2: Convert to fraction form
    1,322,969.10/1,980,517.05 = 790,215.90/x
  3. Step 3: Cross multiply
    1,322,969.10x = 1,980,517.05 × 790,215.90
  4. Step 4: Simplify right side
    1,322,969.10x = 1,565,036,063,131.10
  5. Step 5: Solve for x
    x = 1,565,036,063,131.10/1,322,969.10
  6. Step 6: Final answer
    x = 1,182,972.50

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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.