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Finding the Fourth Proportional to 617,671.66, 852,265.70 and 388,095.95

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Solution

The fourth proportional to 617,671.66, 852,265.70 and 388,095.95 is: 535,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,671.66 : 852,265.70 = 388,095.95 : x
  2. Step 2: Convert to fraction form
    617,671.66/852,265.70 = 388,095.95/x
  3. Step 3: Cross multiply
    617,671.66x = 852,265.70 × 388,095.95
  4. Step 4: Simplify right side
    617,671.66x = 330,760,862,232.59
  5. Step 5: Solve for x
    x = 330,760,862,232.59/617,671.66
  6. Step 6: Final answer
    x = 535,496.26

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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.