Home / 819,279.71-1,228,066.87-458,922.26

Finding the Fourth Proportional to 819,279.71, 1,228,066.87 and 458,922.26

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Solution

The fourth proportional to 819,279.71, 1,228,066.87 and 458,922.26 is: 687,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,279.71 : 1,228,066.87 = 458,922.26 : x
  2. Step 2: Convert to fraction form
    819,279.71/1,228,066.87 = 458,922.26/x
  3. Step 3: Cross multiply
    819,279.71x = 1,228,066.87 × 458,922.26
  4. Step 4: Simplify right side
    819,279.71x = 563,587,219,286.99
  5. Step 5: Solve for x
    x = 563,587,219,286.99/819,279.71
  6. Step 6: Final answer
    x = 687,905.74

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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.