Home / 2,657,695.20-3,986,399.68-1,308,512.64

Finding the Fourth Proportional to 2,657,695.20, 3,986,399.68 and 1,308,512.64

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Solution

The fourth proportional to 2,657,695.20, 3,986,399.68 and 1,308,512.64 is: 1,962,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,695.20 : 3,986,399.68 = 1,308,512.64 : x
  2. Step 2: Convert to fraction form
    2,657,695.20/3,986,399.68 = 1,308,512.64/x
  3. Step 3: Cross multiply
    2,657,695.20x = 3,986,399.68 × 1,308,512.64
  4. Step 4: Simplify right side
    2,657,695.20x = 5,216,254,369,371.96
  5. Step 5: Solve for x
    x = 5,216,254,369,371.96/2,657,695.20
  6. Step 6: Final answer
    x = 1,962,698.50

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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.