Home / 1,359,139.20-2,038,190.40-412,195.20

Finding the Fourth Proportional to 1,359,139.20, 2,038,190.40 and 412,195.20

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Solution

The fourth proportional to 1,359,139.20, 2,038,190.40 and 412,195.20 is: 618,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,139.20 : 2,038,190.40 = 412,195.20 : x
  2. Step 2: Convert to fraction form
    1,359,139.20/2,038,190.40 = 412,195.20/x
  3. Step 3: Cross multiply
    1,359,139.20x = 2,038,190.40 × 412,195.20
  4. Step 4: Simplify right side
    1,359,139.20x = 840,132,299,566.08
  5. Step 5: Solve for x
    x = 840,132,299,566.08/1,359,139.20
  6. Step 6: Final answer
    x = 618,135.58

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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.