Home / 678,591.52-1,017,878.64-166,261.84

Finding the Fourth Proportional to 678,591.52, 1,017,878.64 and 166,261.84

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Solution

The fourth proportional to 678,591.52, 1,017,878.64 and 166,261.84 is: 249,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,591.52 : 1,017,878.64 = 166,261.84 : x
  2. Step 2: Convert to fraction form
    678,591.52/1,017,878.64 = 166,261.84/x
  3. Step 3: Cross multiply
    678,591.52x = 1,017,878.64 × 166,261.84
  4. Step 4: Simplify right side
    678,591.52x = 169,234,375,583.10
  5. Step 5: Solve for x
    x = 169,234,375,583.10/678,591.52
  6. Step 6: Final answer
    x = 249,390.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.