Home / 764,445.02-1,054,934.81-420,286.82

Finding the Fourth Proportional to 764,445.02, 1,054,934.81 and 420,286.82

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Solution

The fourth proportional to 764,445.02, 1,054,934.81 and 420,286.82 is: 579,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,445.02 : 1,054,934.81 = 420,286.82 : x
  2. Step 2: Convert to fraction form
    764,445.02/1,054,934.81 = 420,286.82/x
  3. Step 3: Cross multiply
    764,445.02x = 1,054,934.81 × 420,286.82
  4. Step 4: Simplify right side
    764,445.02x = 443,375,189,226.10
  5. Step 5: Solve for x
    x = 443,375,189,226.10/764,445.02
  6. Step 6: Final answer
    x = 579,996.18

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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.