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Finding the Fourth Proportional to 605,305.40, 907,739.40 and 245,325.20

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Solution

The fourth proportional to 605,305.40, 907,739.40 and 245,325.20 is: 367,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,305.40 : 907,739.40 = 245,325.20 : x
  2. Step 2: Convert to fraction form
    605,305.40/907,739.40 = 245,325.20/x
  3. Step 3: Cross multiply
    605,305.40x = 907,739.40 × 245,325.20
  4. Step 4: Simplify right side
    605,305.40x = 222,691,349,852.88
  5. Step 5: Solve for x
    x = 222,691,349,852.88/605,305.40
  6. Step 6: Final answer
    x = 367,899.16

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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.