Home / 979,905-1,467,291.44-641,882.28

Finding the Fourth Proportional to 979,905, 1,467,291.44 and 641,882.28

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Solution

The fourth proportional to 979,905, 1,467,291.44 and 641,882.28 is: 961,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,905 : 1,467,291.44 = 641,882.28 : x
  2. Step 2: Convert to fraction form
    979,905/1,467,291.44 = 641,882.28/x
  3. Step 3: Cross multiply
    979,905x = 1,467,291.44 × 641,882.28
  4. Step 4: Simplify right side
    979,905x = 941,828,374,931.68
  5. Step 5: Solve for x
    x = 941,828,374,931.68/979,905
  6. Step 6: Final answer
    x = 961,142.53

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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.