Home / 1,215,802.72-1,823,740.99-417,072.73

Finding the Fourth Proportional to 1,215,802.72, 1,823,740.99 and 417,072.73

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Solution

The fourth proportional to 1,215,802.72, 1,823,740.99 and 417,072.73 is: 625,621.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,802.72 : 1,823,740.99 = 417,072.73 : x
  2. Step 2: Convert to fraction form
    1,215,802.72/1,823,740.99 = 417,072.73/x
  3. Step 3: Cross multiply
    1,215,802.72x = 1,823,740.99 × 417,072.73
  4. Step 4: Simplify right side
    1,215,802.72x = 760,632,633,512.20
  5. Step 5: Solve for x
    x = 760,632,633,512.20/1,215,802.72
  6. Step 6: Final answer
    x = 625,621.76

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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.