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Finding the Fourth Proportional to 568,608.60, 784,683.68 and 310,487.34

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Solution

The fourth proportional to 568,608.60, 784,683.68 and 310,487.34 is: 428,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,608.60 : 784,683.68 = 310,487.34 : x
  2. Step 2: Convert to fraction form
    568,608.60/784,683.68 = 310,487.34/x
  3. Step 3: Cross multiply
    568,608.60x = 784,683.68 × 310,487.34
  4. Step 4: Simplify right side
    568,608.60x = 243,634,348,544.61
  5. Step 5: Solve for x
    x = 243,634,348,544.61/568,608.60
  6. Step 6: Final answer
    x = 428,474.61

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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.