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Finding the Fourth Proportional to 617,533.32, 852,719.06 and 388,164.44

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Solution

The fourth proportional to 617,533.32, 852,719.06 and 388,164.44 is: 535,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,533.32 : 852,719.06 = 388,164.44 : x
  2. Step 2: Convert to fraction form
    617,533.32/852,719.06 = 388,164.44/x
  3. Step 3: Cross multiply
    617,533.32x = 852,719.06 × 388,164.44
  4. Step 4: Simplify right side
    617,533.32x = 330,995,216,402.23
  5. Step 5: Solve for x
    x = 330,995,216,402.23/617,533.32
  6. Step 6: Final answer
    x = 535,995.72

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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.