Home / 934,630.36-1,289,850.68-521,213.78

Finding the Fourth Proportional to 934,630.36, 1,289,850.68 and 521,213.78

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Solution

The fourth proportional to 934,630.36, 1,289,850.68 and 521,213.78 is: 719,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,630.36 : 1,289,850.68 = 521,213.78 : x
  2. Step 2: Convert to fraction form
    934,630.36/1,289,850.68 = 521,213.78/x
  3. Step 3: Cross multiply
    934,630.36x = 1,289,850.68 × 521,213.78
  4. Step 4: Simplify right side
    934,630.36x = 672,287,948,558.37
  5. Step 5: Solve for x
    x = 672,287,948,558.37/934,630.36
  6. Step 6: Final answer
    x = 719,308.91

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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.