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Finding the Fourth Proportional to 568,209.97, 784,134.34 and 310,088.95

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Solution

The fourth proportional to 568,209.97, 784,134.34 and 310,088.95 is: 427,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,209.97 : 784,134.34 = 310,088.95 : x
  2. Step 2: Convert to fraction form
    568,209.97/784,134.34 = 310,088.95/x
  3. Step 3: Cross multiply
    568,209.97x = 784,134.34 × 310,088.95
  4. Step 4: Simplify right side
    568,209.97x = 243,151,394,149.54
  5. Step 5: Solve for x
    x = 243,151,394,149.54/568,209.97
  6. Step 6: Final answer
    x = 427,925.25

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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.