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Finding the Fourth Proportional to 617,569.80, 852,261.62 and 345,635.40

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Solution

The fourth proportional to 617,569.80, 852,261.62 and 345,635.40 is: 476,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,569.80 : 852,261.62 = 345,635.40 : x
  2. Step 2: Convert to fraction form
    617,569.80/852,261.62 = 345,635.40/x
  3. Step 3: Cross multiply
    617,569.80x = 852,261.62 × 345,635.40
  4. Step 4: Simplify right side
    617,569.80x = 294,571,785,933.35
  5. Step 5: Solve for x
    x = 294,571,785,933.35/617,569.80
  6. Step 6: Final answer
    x = 476,985.41

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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.