Home / 2,656,187.20-3,979,528.80-1,615,643.20

Finding the Fourth Proportional to 2,656,187.20, 3,979,528.80 and 1,615,643.20

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Solution

The fourth proportional to 2,656,187.20, 3,979,528.80 and 1,615,643.20 is: 2,420,574.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656,187.20 : 3,979,528.80 = 1,615,643.20 : x
  2. Step 2: Convert to fraction form
    2,656,187.20/3,979,528.80 = 1,615,643.20/x
  3. Step 3: Cross multiply
    2,656,187.20x = 3,979,528.80 × 1,615,643.20
  4. Step 4: Simplify right side
    2,656,187.20x = 6,429,498,644,924.16
  5. Step 5: Solve for x
    x = 6,429,498,644,924.16/2,656,187.20
  6. Step 6: Final answer
    x = 2,420,574.36

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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.