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Finding the Fourth Proportional to 472,719.95, 652,357.70 and 257,860.97

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Solution

The fourth proportional to 472,719.95, 652,357.70 and 257,860.97 is: 355,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,719.95 : 652,357.70 = 257,860.97 : x
  2. Step 2: Convert to fraction form
    472,719.95/652,357.70 = 257,860.97/x
  3. Step 3: Cross multiply
    472,719.95x = 652,357.70 × 257,860.97
  4. Step 4: Simplify right side
    472,719.95x = 168,217,584,757.88
  5. Step 5: Solve for x
    x = 168,217,584,757.88/472,719.95
  6. Step 6: Final answer
    x = 355,850.41

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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.