Home / 988,679.40-1,481,852.70-739,069.80

Finding the Fourth Proportional to 988,679.40, 1,481,852.70 and 739,069.80

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Solution

The fourth proportional to 988,679.40, 1,481,852.70 and 739,069.80 is: 1,107,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,679.40 : 1,481,852.70 = 739,069.80 : x
  2. Step 2: Convert to fraction form
    988,679.40/1,481,852.70 = 739,069.80/x
  3. Step 3: Cross multiply
    988,679.40x = 1,481,852.70 × 739,069.80
  4. Step 4: Simplify right side
    988,679.40x = 1,095,192,578,618.46
  5. Step 5: Solve for x
    x = 1,095,192,578,618.46/988,679.40
  6. Step 6: Final answer
    x = 1,107,732.78

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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.