Home / 1,327,312.80-1,990,969.20-330,040.80

Finding the Fourth Proportional to 1,327,312.80, 1,990,969.20 and 330,040.80

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Solution

The fourth proportional to 1,327,312.80, 1,990,969.20 and 330,040.80 is: 495,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,312.80 : 1,990,969.20 = 330,040.80 : x
  2. Step 2: Convert to fraction form
    1,327,312.80/1,990,969.20 = 330,040.80/x
  3. Step 3: Cross multiply
    1,327,312.80x = 1,990,969.20 × 330,040.80
  4. Step 4: Simplify right side
    1,327,312.80x = 657,101,067,543.36
  5. Step 5: Solve for x
    x = 657,101,067,543.36/1,327,312.80
  6. Step 6: Final answer
    x = 495,061.20

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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.