Home / 689,930.30-951,985.35-634,121.97

Finding the Fourth Proportional to 689,930.30, 951,985.35 and 634,121.97

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Solution

The fourth proportional to 689,930.30, 951,985.35 and 634,121.97 is: 874,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,930.30 : 951,985.35 = 634,121.97 : x
  2. Step 2: Convert to fraction form
    689,930.30/951,985.35 = 634,121.97/x
  3. Step 3: Cross multiply
    689,930.30x = 951,985.35 × 634,121.97
  4. Step 4: Simplify right side
    689,930.30x = 603,674,825,553.14
  5. Step 5: Solve for x
    x = 603,674,825,553.14/689,930.30
  6. Step 6: Final answer
    x = 874,979.44

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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.