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Finding the Fourth Proportional to 577,629.64, 866,446.89 and 379,205.56

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Solution

The fourth proportional to 577,629.64, 866,446.89 and 379,205.56 is: 568,809.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,629.64 : 866,446.89 = 379,205.56 : x
  2. Step 2: Convert to fraction form
    577,629.64/866,446.89 = 379,205.56/x
  3. Step 3: Cross multiply
    577,629.64x = 866,446.89 × 379,205.56
  4. Step 4: Simplify right side
    577,629.64x = 328,561,478,132.71
  5. Step 5: Solve for x
    x = 328,561,478,132.71/577,629.64
  6. Step 6: Final answer
    x = 568,809.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.