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Finding the Fourth Proportional to 988,015, 1,363,462.06 and 535,306.04

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Solution

The fourth proportional to 988,015, 1,363,462.06 and 535,306.04 is: 738,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,015 : 1,363,462.06 = 535,306.04 : x
  2. Step 2: Convert to fraction form
    988,015/1,363,462.06 = 535,306.04/x
  3. Step 3: Cross multiply
    988,015x = 1,363,462.06 × 535,306.04
  4. Step 4: Simplify right side
    988,015x = 729,869,476,028.84
  5. Step 5: Solve for x
    x = 729,869,476,028.84/988,015
  6. Step 6: Final answer
    x = 738,723.07

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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.