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Finding the Fourth Proportional to 505,500.80, 697,590.12 and 290,682.32

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Solution

The fourth proportional to 505,500.80, 697,590.12 and 290,682.32 is: 401,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,500.80 : 697,590.12 = 290,682.32 : x
  2. Step 2: Convert to fraction form
    505,500.80/697,590.12 = 290,682.32/x
  3. Step 3: Cross multiply
    505,500.80x = 697,590.12 × 290,682.32
  4. Step 4: Simplify right side
    505,500.80x = 202,777,114,490.68
  5. Step 5: Solve for x
    x = 202,777,114,490.68/505,500.80
  6. Step 6: Final answer
    x = 401,141.04

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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.