Home / 505,150.20-697,226.94-290,415.02

Finding the Fourth Proportional to 505,150.20, 697,226.94 and 290,415.02

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Solution

The fourth proportional to 505,150.20, 697,226.94 and 290,415.02 is: 400,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,150.20 : 697,226.94 = 290,415.02 : x
  2. Step 2: Convert to fraction form
    505,150.20/697,226.94 = 290,415.02/x
  3. Step 3: Cross multiply
    505,150.20x = 697,226.94 × 290,415.02
  4. Step 4: Simplify right side
    505,150.20x = 202,485,175,724.64
  5. Step 5: Solve for x
    x = 202,485,175,724.64/505,150.20
  6. Step 6: Final answer
    x = 400,841.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.