Home / 627,261.30-865,624.74-340,781.31

Finding the Fourth Proportional to 627,261.30, 865,624.74 and 340,781.31

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Solution

The fourth proportional to 627,261.30, 865,624.74 and 340,781.31 is: 470,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,261.30 : 865,624.74 = 340,781.31 : x
  2. Step 2: Convert to fraction form
    627,261.30/865,624.74 = 340,781.31/x
  3. Step 3: Cross multiply
    627,261.30x = 865,624.74 × 340,781.31
  4. Step 4: Simplify right side
    627,261.30x = 294,988,732,865.61
  5. Step 5: Solve for x
    x = 294,988,732,865.61/627,261.30
  6. Step 6: Final answer
    x = 470,280.46

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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.