Home / 766,928.28-1,149,989.49-340,279.32

Finding the Fourth Proportional to 766,928.28, 1,149,989.49 and 340,279.32

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Solution

The fourth proportional to 766,928.28, 1,149,989.49 and 340,279.32 is: 510,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,928.28 : 1,149,989.49 = 340,279.32 : x
  2. Step 2: Convert to fraction form
    766,928.28/1,149,989.49 = 340,279.32/x
  3. Step 3: Cross multiply
    766,928.28x = 1,149,989.49 × 340,279.32
  4. Step 4: Simplify right side
    766,928.28x = 391,317,641,664.35
  5. Step 5: Solve for x
    x = 391,317,641,664.35/766,928.28
  6. Step 6: Final answer
    x = 510,240.20

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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.