Home / 627,384.96-865,789.36-340,905.92

Finding the Fourth Proportional to 627,384.96, 865,789.36 and 340,905.92

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Solution

The fourth proportional to 627,384.96, 865,789.36 and 340,905.92 is: 470,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,384.96 : 865,789.36 = 340,905.92 : x
  2. Step 2: Convert to fraction form
    627,384.96/865,789.36 = 340,905.92/x
  3. Step 3: Cross multiply
    627,384.96x = 865,789.36 × 340,905.92
  4. Step 4: Simplify right side
    627,384.96x = 295,152,718,297.01
  5. Step 5: Solve for x
    x = 295,152,718,297.01/627,384.96
  6. Step 6: Final answer
    x = 470,449.15

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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.