Home / 521,990.12-720,322.26-295,637.24

Finding the Fourth Proportional to 521,990.12, 720,322.26 and 295,637.24

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Solution

The fourth proportional to 521,990.12, 720,322.26 and 295,637.24 is: 407,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,990.12 : 720,322.26 = 295,637.24 : x
  2. Step 2: Convert to fraction form
    521,990.12/720,322.26 = 295,637.24/x
  3. Step 3: Cross multiply
    521,990.12x = 720,322.26 × 295,637.24
  4. Step 4: Simplify right side
    521,990.12x = 212,954,084,856.96
  5. Step 5: Solve for x
    x = 212,954,084,856.96/521,990.12
  6. Step 6: Final answer
    x = 407,965.74

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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.