Home / 1,330,230.40-1,995,637.20-431,519.20

Finding the Fourth Proportional to 1,330,230.40, 1,995,637.20 and 431,519.20

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Solution

The fourth proportional to 1,330,230.40, 1,995,637.20 and 431,519.20 is: 647,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,230.40 : 1,995,637.20 = 431,519.20 : x
  2. Step 2: Convert to fraction form
    1,330,230.40/1,995,637.20 = 431,519.20/x
  3. Step 3: Cross multiply
    1,330,230.40x = 1,995,637.20 × 431,519.20
  4. Step 4: Simplify right side
    1,330,230.40x = 861,155,768,034.24
  5. Step 5: Solve for x
    x = 861,155,768,034.24/1,330,230.40
  6. Step 6: Final answer
    x = 647,373.39

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1.5x scale

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.