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Finding the Fourth Proportional to 472,617.78, 652,205.49 and 257,757.39

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Solution

The fourth proportional to 472,617.78, 652,205.49 and 257,757.39 is: 355,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,617.78 : 652,205.49 = 257,757.39 : x
  2. Step 2: Convert to fraction form
    472,617.78/652,205.49 = 257,757.39/x
  3. Step 3: Cross multiply
    472,617.78x = 652,205.49 × 257,757.39
  4. Step 4: Simplify right side
    472,617.78x = 168,110,784,846.07
  5. Step 5: Solve for x
    x = 168,110,784,846.07/472,617.78
  6. Step 6: Final answer
    x = 355,701.36

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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.