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Finding the Fourth Proportional to 568,585.92, 784,642.53 and 310,462.05

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Solution

The fourth proportional to 568,585.92, 784,642.53 and 310,462.05 is: 428,434.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,585.92 : 784,642.53 = 310,462.05 : x
  2. Step 2: Convert to fraction form
    568,585.92/784,642.53 = 310,462.05/x
  3. Step 3: Cross multiply
    568,585.92x = 784,642.53 × 310,462.05
  4. Step 4: Simplify right side
    568,585.92x = 243,601,728,380.99
  5. Step 5: Solve for x
    x = 243,601,728,380.99/568,585.92
  6. Step 6: Final answer
    x = 428,434.33

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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.