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Finding the Fourth Proportional to 568,284.78, 784,334.68 and 338,856.86

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Solution

The fourth proportional to 568,284.78, 784,334.68 and 338,856.86 is: 467,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,284.78 : 784,334.68 = 338,856.86 : x
  2. Step 2: Convert to fraction form
    568,284.78/784,334.68 = 338,856.86/x
  3. Step 3: Cross multiply
    568,284.78x = 784,334.68 × 338,856.86
  4. Step 4: Simplify right side
    568,284.78x = 265,777,186,853.91
  5. Step 5: Solve for x
    x = 265,777,186,853.91/568,284.78
  6. Step 6: Final answer
    x = 467,683.10

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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.