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Finding the Fourth Proportional to 605,285.40, 907,709.40 and 245,305.20

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Solution

The fourth proportional to 605,285.40, 907,709.40 and 245,305.20 is: 367,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,285.40 : 907,709.40 = 245,305.20 : x
  2. Step 2: Convert to fraction form
    605,285.40/907,709.40 = 245,305.20/x
  3. Step 3: Cross multiply
    605,285.40x = 907,709.40 × 245,305.20
  4. Step 4: Simplify right side
    605,285.40x = 222,665,835,908.88
  5. Step 5: Solve for x
    x = 222,665,835,908.88/605,285.40
  6. Step 6: Final answer
    x = 367,869.17

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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.