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Finding the Fourth Proportional to 662,768.60, 914,620.56 and 360,962.60

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Solution

The fourth proportional to 662,768.60, 914,620.56 and 360,962.60 is: 498,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,768.60 : 914,620.56 = 360,962.60 : x
  2. Step 2: Convert to fraction form
    662,768.60/914,620.56 = 360,962.60/x
  3. Step 3: Cross multiply
    662,768.60x = 914,620.56 × 360,962.60
  4. Step 4: Simplify right side
    662,768.60x = 330,143,815,351.06
  5. Step 5: Solve for x
    x = 330,143,815,351.06/662,768.60
  6. Step 6: Final answer
    x = 498,128.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.