Home / 812,464.92-1,122,369.47-648,906.69

Finding the Fourth Proportional to 812,464.92, 1,122,369.47 and 648,906.69

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Solution

The fourth proportional to 812,464.92, 1,122,369.47 and 648,906.69 is: 896,424.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,464.92 : 1,122,369.47 = 648,906.69 : x
  2. Step 2: Convert to fraction form
    812,464.92/1,122,369.47 = 648,906.69/x
  3. Step 3: Cross multiply
    812,464.92x = 1,122,369.47 × 648,906.69
  4. Step 4: Simplify right side
    812,464.92x = 728,313,048,878.37
  5. Step 5: Solve for x
    x = 728,313,048,878.37/812,464.92
  6. Step 6: Final answer
    x = 896,424.00

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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.