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Finding the Fourth Proportional to 450,062.28, 621,086.10 and 256,464.42

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Solution

The fourth proportional to 450,062.28, 621,086.10 and 256,464.42 is: 353,920.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,062.28 : 621,086.10 = 256,464.42 : x
  2. Step 2: Convert to fraction form
    450,062.28/621,086.10 = 256,464.42/x
  3. Step 3: Cross multiply
    450,062.28x = 621,086.10 × 256,464.42
  4. Step 4: Simplify right side
    450,062.28x = 159,286,486,406.56
  5. Step 5: Solve for x
    x = 159,286,486,406.56/450,062.28
  6. Step 6: Final answer
    x = 353,920.99

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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.