Home / 1,639,147.20-2,458,720.80-517,216.20

Finding the Fourth Proportional to 1,639,147.20, 2,458,720.80 and 517,216.20

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Solution

The fourth proportional to 1,639,147.20, 2,458,720.80 and 517,216.20 is: 775,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,147.20 : 2,458,720.80 = 517,216.20 : x
  2. Step 2: Convert to fraction form
    1,639,147.20/2,458,720.80 = 517,216.20/x
  3. Step 3: Cross multiply
    1,639,147.20x = 2,458,720.80 × 517,216.20
  4. Step 4: Simplify right side
    1,639,147.20x = 1,271,690,229,036.96
  5. Step 5: Solve for x
    x = 1,271,690,229,036.96/1,639,147.20
  6. Step 6: Final answer
    x = 775,824.30

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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.