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Finding the Fourth Proportional to 689,945.22, 952,133.42 and 379,883.87

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Solution

The fourth proportional to 689,945.22, 952,133.42 and 379,883.87 is: 524,244.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,945.22 : 952,133.42 = 379,883.87 : x
  2. Step 2: Convert to fraction form
    689,945.22/952,133.42 = 379,883.87/x
  3. Step 3: Cross multiply
    689,945.22x = 952,133.42 × 379,883.87
  4. Step 4: Simplify right side
    689,945.22x = 361,700,128,345.94
  5. Step 5: Solve for x
    x = 361,700,128,345.94/689,945.22
  6. Step 6: Final answer
    x = 524,244.71

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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.