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Finding the Fourth Proportional to 376,709.60, 566,376.60 and 318,972.80

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Solution

The fourth proportional to 376,709.60, 566,376.60 and 318,972.80 is: 479,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,709.60 : 566,376.60 = 318,972.80 : x
  2. Step 2: Convert to fraction form
    376,709.60/566,376.60 = 318,972.80/x
  3. Step 3: Cross multiply
    376,709.60x = 566,376.60 × 318,972.80
  4. Step 4: Simplify right side
    376,709.60x = 180,658,729,956.48
  5. Step 5: Solve for x
    x = 180,658,729,956.48/376,709.60
  6. Step 6: Final answer
    x = 479,570.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.