Home / 928,297.76-1,392,621.60-661,396.28

Finding the Fourth Proportional to 928,297.76, 1,392,621.60 and 661,396.28

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Solution

The fourth proportional to 928,297.76, 1,392,621.60 and 661,396.28 is: 992,219.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,297.76 : 1,392,621.60 = 661,396.28 : x
  2. Step 2: Convert to fraction form
    928,297.76/1,392,621.60 = 661,396.28/x
  3. Step 3: Cross multiply
    928,297.76x = 1,392,621.60 × 661,396.28
  4. Step 4: Simplify right side
    928,297.76x = 921,074,745,687.65
  5. Step 5: Solve for x
    x = 921,074,745,687.65/928,297.76
  6. Step 6: Final answer
    x = 992,219.08

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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.