Home / 627,258.40-865,611.97-340,780.84

Finding the Fourth Proportional to 627,258.40, 865,611.97 and 340,780.84

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Solution

The fourth proportional to 627,258.40, 865,611.97 and 340,780.84 is: 470,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,258.40 : 865,611.97 = 340,780.84 : x
  2. Step 2: Convert to fraction form
    627,258.40/865,611.97 = 340,780.84/x
  3. Step 3: Cross multiply
    627,258.40x = 865,611.97 × 340,780.84
  4. Step 4: Simplify right side
    627,258.40x = 294,983,974,250.66
  5. Step 5: Solve for x
    x = 294,983,974,250.66/627,258.40
  6. Step 6: Final answer
    x = 470,275.05

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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.