Home / 881,250.24-1,216,129.28-499,351.44

Finding the Fourth Proportional to 881,250.24, 1,216,129.28 and 499,351.44

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Solution

The fourth proportional to 881,250.24, 1,216,129.28 and 499,351.44 is: 689,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,250.24 : 1,216,129.28 = 499,351.44 : x
  2. Step 2: Convert to fraction form
    881,250.24/1,216,129.28 = 499,351.44/x
  3. Step 3: Cross multiply
    881,250.24x = 1,216,129.28 × 499,351.44
  4. Step 4: Simplify right side
    881,250.24x = 607,275,907,194.16
  5. Step 5: Solve for x
    x = 607,275,907,194.16/881,250.24
  6. Step 6: Final answer
    x = 689,107.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.