Home / 617,631.49-852,863.39-388,570.58

Finding the Fourth Proportional to 617,631.49, 852,863.39 and 388,570.58

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Solution

The fourth proportional to 617,631.49, 852,863.39 and 388,570.58 is: 536,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,631.49 : 852,863.39 = 388,570.58 : x
  2. Step 2: Convert to fraction form
    617,631.49/852,863.39 = 388,570.58/x
  3. Step 3: Cross multiply
    617,631.49x = 852,863.39 × 388,570.58
  4. Step 4: Simplify right side
    617,631.49x = 331,397,615,905.90
  5. Step 5: Solve for x
    x = 331,397,615,905.90/617,631.49
  6. Step 6: Final answer
    x = 536,562.05

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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.