Home / 988,530.40-1,481,629.20-738,920.80

Finding the Fourth Proportional to 988,530.40, 1,481,629.20 and 738,920.80

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Solution

The fourth proportional to 988,530.40, 1,481,629.20 and 738,920.80 is: 1,107,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,530.40 : 1,481,629.20 = 738,920.80 : x
  2. Step 2: Convert to fraction form
    988,530.40/1,481,629.20 = 738,920.80/x
  3. Step 3: Cross multiply
    988,530.40x = 1,481,629.20 × 738,920.80
  4. Step 4: Simplify right side
    988,530.40x = 1,094,806,633,767.36
  5. Step 5: Solve for x
    x = 1,094,806,633,767.36/988,530.40
  6. Step 6: Final answer
    x = 1,107,509.32

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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.