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Finding the Fourth Proportional to 605,002.20, 907,284.60 and 305,383.20

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Solution

The fourth proportional to 605,002.20, 907,284.60 and 305,383.20 is: 457,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,002.20 : 907,284.60 = 305,383.20 : x
  2. Step 2: Convert to fraction form
    605,002.20/907,284.60 = 305,383.20/x
  3. Step 3: Cross multiply
    605,002.20x = 907,284.60 × 305,383.20
  4. Step 4: Simplify right side
    605,002.20x = 277,069,474,458.72
  5. Step 5: Solve for x
    x = 277,069,474,458.72/605,002.20
  6. Step 6: Final answer
    x = 457,964.41

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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.