Home / 1,327,284.80-1,990,927.20-330,012.80

Finding the Fourth Proportional to 1,327,284.80, 1,990,927.20 and 330,012.80

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Solution

The fourth proportional to 1,327,284.80, 1,990,927.20 and 330,012.80 is: 495,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,284.80 : 1,990,927.20 = 330,012.80 : x
  2. Step 2: Convert to fraction form
    1,327,284.80/1,990,927.20 = 330,012.80/x
  3. Step 3: Cross multiply
    1,327,284.80x = 1,990,927.20 × 330,012.80
  4. Step 4: Simplify right side
    1,327,284.80x = 657,031,459,868.16
  5. Step 5: Solve for x
    x = 657,031,459,868.16/1,327,284.80
  6. Step 6: Final answer
    x = 495,019.20

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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.