Home / 819,914.64-1,230,109.92-340,054.44

Finding the Fourth Proportional to 819,914.64, 1,230,109.92 and 340,054.44

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Solution

The fourth proportional to 819,914.64, 1,230,109.92 and 340,054.44 is: 510,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,914.64 : 1,230,109.92 = 340,054.44 : x
  2. Step 2: Convert to fraction form
    819,914.64/1,230,109.92 = 340,054.44/x
  3. Step 3: Cross multiply
    819,914.64x = 1,230,109.92 × 340,054.44
  4. Step 4: Simplify right side
    819,914.64x = 418,304,339,984.05
  5. Step 5: Solve for x
    x = 418,304,339,984.05/819,914.64
  6. Step 6: Final answer
    x = 510,180.35

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1.5x scale

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.