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Finding the Fourth Proportional to 568,332.48, 784,286.84 and 310,200.87

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Solution

The fourth proportional to 568,332.48, 784,286.84 and 310,200.87 is: 428,070.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,332.48 : 784,286.84 = 310,200.87 : x
  2. Step 2: Convert to fraction form
    568,332.48/784,286.84 = 310,200.87/x
  3. Step 3: Cross multiply
    568,332.48x = 784,286.84 × 310,200.87
  4. Step 4: Simplify right side
    568,332.48x = 243,286,458,546.55
  5. Step 5: Solve for x
    x = 243,286,458,546.55/568,332.48
  6. Step 6: Final answer
    x = 428,070.66

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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.