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Finding the Fourth Proportional to 605,303.26, 906,727.69 and 280,635.26

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Solution

The fourth proportional to 605,303.26, 906,727.69 and 280,635.26 is: 420,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,303.26 : 906,727.69 = 280,635.26 : x
  2. Step 2: Convert to fraction form
    605,303.26/906,727.69 = 280,635.26/x
  3. Step 3: Cross multiply
    605,303.26x = 906,727.69 × 280,635.26
  4. Step 4: Simplify right side
    605,303.26x = 254,459,761,032.35
  5. Step 5: Solve for x
    x = 254,459,761,032.35/605,303.26
  6. Step 6: Final answer
    x = 420,383.93

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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.