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Finding the Fourth Proportional to 523,665.68, 722,624.04 and 308,795.60

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Solution

The fourth proportional to 523,665.68, 722,624.04 and 308,795.60 is: 426,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,665.68 : 722,624.04 = 308,795.60 : x
  2. Step 2: Convert to fraction form
    523,665.68/722,624.04 = 308,795.60/x
  3. Step 3: Cross multiply
    523,665.68x = 722,624.04 × 308,795.60
  4. Step 4: Simplify right side
    523,665.68x = 223,143,124,006.22
  5. Step 5: Solve for x
    x = 223,143,124,006.22/523,665.68
  6. Step 6: Final answer
    x = 426,117.53

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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.