Home / 668,741.82-922,727.22-396,690.54

Finding the Fourth Proportional to 668,741.82, 922,727.22 and 396,690.54

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Solution

The fourth proportional to 668,741.82, 922,727.22 and 396,690.54 is: 547,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,741.82 : 922,727.22 = 396,690.54 : x
  2. Step 2: Convert to fraction form
    668,741.82/922,727.22 = 396,690.54/x
  3. Step 3: Cross multiply
    668,741.82x = 922,727.22 × 396,690.54
  4. Step 4: Simplify right side
    668,741.82x = 366,037,159,174.50
  5. Step 5: Solve for x
    x = 366,037,159,174.50/668,741.82
  6. Step 6: Final answer
    x = 547,351.98

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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.