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Finding the Fourth Proportional to 483,545.76, 667,254 and 279,609.90

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Solution

The fourth proportional to 483,545.76, 667,254 and 279,609.90 is: 385,839.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,545.76 : 667,254 = 279,609.90 : x
  2. Step 2: Convert to fraction form
    483,545.76/667,254 = 279,609.90/x
  3. Step 3: Cross multiply
    483,545.76x = 667,254 × 279,609.90
  4. Step 4: Simplify right side
    483,545.76x = 186,570,824,214.60
  5. Step 5: Solve for x
    x = 186,570,824,214.60/483,545.76
  6. Step 6: Final answer
    x = 385,839.02

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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.