Home / 812,442.75-1,121,297.54-463,583.85

Finding the Fourth Proportional to 812,442.75, 1,121,297.54 and 463,583.85

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Solution

The fourth proportional to 812,442.75, 1,121,297.54 and 463,583.85 is: 639,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,442.75 : 1,121,297.54 = 463,583.85 : x
  2. Step 2: Convert to fraction form
    812,442.75/1,121,297.54 = 463,583.85/x
  3. Step 3: Cross multiply
    812,442.75x = 1,121,297.54 × 463,583.85
  4. Step 4: Simplify right side
    812,442.75x = 519,815,430,588.73
  5. Step 5: Solve for x
    x = 519,815,430,588.73/812,442.75
  6. Step 6: Final answer
    x = 639,817.92

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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.