Home / 958,888.80-1,439,216.64-485,904.96

Finding the Fourth Proportional to 958,888.80, 1,439,216.64 and 485,904.96

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Solution

The fourth proportional to 958,888.80, 1,439,216.64 and 485,904.96 is: 729,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,888.80 : 1,439,216.64 = 485,904.96 : x
  2. Step 2: Convert to fraction form
    958,888.80/1,439,216.64 = 485,904.96/x
  3. Step 3: Cross multiply
    958,888.80x = 1,439,216.64 × 485,904.96
  4. Step 4: Simplify right side
    958,888.80x = 699,322,503,890.53
  5. Step 5: Solve for x
    x = 699,322,503,890.53/958,888.80
  6. Step 6: Final answer
    x = 729,305.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.