Home / 988,901.10-1,483,351.65-278,919.90

Finding the Fourth Proportional to 988,901.10, 1,483,351.65 and 278,919.90

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Solution

The fourth proportional to 988,901.10, 1,483,351.65 and 278,919.90 is: 418,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,901.10 : 1,483,351.65 = 278,919.90 : x
  2. Step 2: Convert to fraction form
    988,901.10/1,483,351.65 = 278,919.90/x
  3. Step 3: Cross multiply
    988,901.10x = 1,483,351.65 × 278,919.90
  4. Step 4: Simplify right side
    988,901.10x = 413,736,293,882.84
  5. Step 5: Solve for x
    x = 413,736,293,882.84/988,901.10
  6. Step 6: Final answer
    x = 418,379.85

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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.