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Finding the Fourth Proportional to 617,080.20, 925,620.30 and 368,248.20

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Solution

The fourth proportional to 617,080.20, 925,620.30 and 368,248.20 is: 552,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,080.20 : 925,620.30 = 368,248.20 : x
  2. Step 2: Convert to fraction form
    617,080.20/925,620.30 = 368,248.20/x
  3. Step 3: Cross multiply
    617,080.20x = 925,620.30 × 368,248.20
  4. Step 4: Simplify right side
    617,080.20x = 340,858,009,358.46
  5. Step 5: Solve for x
    x = 340,858,009,358.46/617,080.20
  6. Step 6: Final answer
    x = 552,372.30

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Double scale
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Similar ratio
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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.