Home / 689,310.66-1,032,194.51-422,261.56

Finding the Fourth Proportional to 689,310.66, 1,032,194.51 and 422,261.56

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Solution

The fourth proportional to 689,310.66, 1,032,194.51 and 422,261.56 is: 632,307.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,310.66 : 1,032,194.51 = 422,261.56 : x
  2. Step 2: Convert to fraction form
    689,310.66/1,032,194.51 = 422,261.56/x
  3. Step 3: Cross multiply
    689,310.66x = 1,032,194.51 × 422,261.56
  4. Step 4: Simplify right side
    689,310.66x = 435,856,058,972.36
  5. Step 5: Solve for x
    x = 435,856,058,972.36/689,310.66
  6. Step 6: Final answer
    x = 632,307.15

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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.