Home / 505,565.68-697,717.38-290,773.12

Finding the Fourth Proportional to 505,565.68, 697,717.38 and 290,773.12

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Solution

The fourth proportional to 505,565.68, 697,717.38 and 290,773.12 is: 401,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,565.68 : 697,717.38 = 290,773.12 : x
  2. Step 2: Convert to fraction form
    505,565.68/697,717.38 = 290,773.12/x
  3. Step 3: Cross multiply
    505,565.68x = 697,717.38 × 290,773.12
  4. Step 4: Simplify right side
    505,565.68x = 202,877,459,460.83
  5. Step 5: Solve for x
    x = 202,877,459,460.83/505,565.68
  6. Step 6: Final answer
    x = 401,288.04

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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.