Home / 1,211,770.31-1,672,144.71-702,505.49

Finding the Fourth Proportional to 1,211,770.31, 1,672,144.71 and 702,505.49

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Solution

The fourth proportional to 1,211,770.31, 1,672,144.71 and 702,505.49 is: 969,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,770.31 : 1,672,144.71 = 702,505.49 : x
  2. Step 2: Convert to fraction form
    1,211,770.31/1,672,144.71 = 702,505.49/x
  3. Step 3: Cross multiply
    1,211,770.31x = 1,672,144.71 × 702,505.49
  4. Step 4: Simplify right side
    1,211,770.31x = 1,174,690,838,849.46
  5. Step 5: Solve for x
    x = 1,174,690,838,849.46/1,211,770.31
  6. Step 6: Final answer
    x = 969,400.58

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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.