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Finding the Fourth Proportional to 617,540.45, 852,243.38 and 345,602.79

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Solution

The fourth proportional to 617,540.45, 852,243.38 and 345,602.79 is: 476,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,540.45 : 852,243.38 = 345,602.79 : x
  2. Step 2: Convert to fraction form
    617,540.45/852,243.38 = 345,602.79/x
  3. Step 3: Cross multiply
    617,540.45x = 852,243.38 × 345,602.79
  4. Step 4: Simplify right side
    617,540.45x = 294,537,688,159.02
  5. Step 5: Solve for x
    x = 294,537,688,159.02/617,540.45
  6. Step 6: Final answer
    x = 476,952.87

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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.