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Finding the Fourth Proportional to 624,215.70, 936,365.40 and 219,358.62

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Solution

The fourth proportional to 624,215.70, 936,365.40 and 219,358.62 is: 329,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,215.70 : 936,365.40 = 219,358.62 : x
  2. Step 2: Convert to fraction form
    624,215.70/936,365.40 = 219,358.62/x
  3. Step 3: Cross multiply
    624,215.70x = 936,365.40 × 219,358.62
  4. Step 4: Simplify right side
    624,215.70x = 205,399,821,959.75
  5. Step 5: Solve for x
    x = 205,399,821,959.75/624,215.70
  6. Step 6: Final answer
    x = 329,052.64

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1.5x scale

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.