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Finding the Fourth Proportional to 550,258.96, 825,621.72 and 300,649.36

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Solution

The fourth proportional to 550,258.96, 825,621.72 and 300,649.36 is: 451,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,258.96 : 825,621.72 = 300,649.36 : x
  2. Step 2: Convert to fraction form
    550,258.96/825,621.72 = 300,649.36/x
  3. Step 3: Cross multiply
    550,258.96x = 825,621.72 × 300,649.36
  4. Step 4: Simplify right side
    550,258.96x = 248,222,641,720.10
  5. Step 5: Solve for x
    x = 248,222,641,720.10/550,258.96
  6. Step 6: Final answer
    x = 451,101.50

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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.