Home / 1,429,863.19-2,145,157.82-661,914.54

Finding the Fourth Proportional to 1,429,863.19, 2,145,157.82 and 661,914.54

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Solution

The fourth proportional to 1,429,863.19, 2,145,157.82 and 661,914.54 is: 993,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,863.19 : 2,145,157.82 = 661,914.54 : x
  2. Step 2: Convert to fraction form
    1,429,863.19/2,145,157.82 = 661,914.54/x
  3. Step 3: Cross multiply
    1,429,863.19x = 2,145,157.82 × 661,914.54
  4. Step 4: Simplify right side
    1,429,863.19x = 1,419,911,160,284.53
  5. Step 5: Solve for x
    x = 1,419,911,160,284.53/1,429,863.19
  6. Step 6: Final answer
    x = 993,039.87

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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.