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Finding the Fourth Proportional to 523,760.05, 722,883.05 and 308,887.57

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Solution

The fourth proportional to 523,760.05, 722,883.05 and 308,887.57 is: 426,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,760.05 : 722,883.05 = 308,887.57 : x
  2. Step 2: Convert to fraction form
    523,760.05/722,883.05 = 308,887.57/x
  3. Step 3: Cross multiply
    523,760.05x = 722,883.05 × 308,887.57
  4. Step 4: Simplify right side
    523,760.05x = 223,289,588,708.69
  5. Step 5: Solve for x
    x = 223,289,588,708.69/523,760.05
  6. Step 6: Final answer
    x = 426,320.39

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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.