Home / 627,468.61-865,912.24-340,988.73

Finding the Fourth Proportional to 627,468.61, 865,912.24 and 340,988.73

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Solution

The fourth proportional to 627,468.61, 865,912.24 and 340,988.73 is: 470,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,468.61 : 865,912.24 = 340,988.73 : x
  2. Step 2: Convert to fraction form
    627,468.61/865,912.24 = 340,988.73/x
  3. Step 3: Cross multiply
    627,468.61x = 865,912.24 × 340,988.73
  4. Step 4: Simplify right side
    627,468.61x = 295,266,315,009.06
  5. Step 5: Solve for x
    x = 295,266,315,009.06/627,468.61
  6. Step 6: Final answer
    x = 470,567.47

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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.