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Finding the Fourth Proportional to 523,650.42, 722,719.67 and 308,814.12

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Solution

The fourth proportional to 523,650.42, 722,719.67 and 308,814.12 is: 426,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,650.42 : 722,719.67 = 308,814.12 : x
  2. Step 2: Convert to fraction form
    523,650.42/722,719.67 = 308,814.12/x
  3. Step 3: Cross multiply
    523,650.42x = 722,719.67 × 308,814.12
  4. Step 4: Simplify right side
    523,650.42x = 223,186,037,353.67
  5. Step 5: Solve for x
    x = 223,186,037,353.67/523,650.42
  6. Step 6: Final answer
    x = 426,211.89

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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.