Home / 1,271,989.39-1,755,412.67-720,811.93

Finding the Fourth Proportional to 1,271,989.39, 1,755,412.67 and 720,811.93

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Solution

The fourth proportional to 1,271,989.39, 1,755,412.67 and 720,811.93 is: 994,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,989.39 : 1,755,412.67 = 720,811.93 : x
  2. Step 2: Convert to fraction form
    1,271,989.39/1,755,412.67 = 720,811.93/x
  3. Step 3: Cross multiply
    1,271,989.39x = 1,755,412.67 × 720,811.93
  4. Step 4: Simplify right side
    1,271,989.39x = 1,265,322,382,228.03
  5. Step 5: Solve for x
    x = 1,265,322,382,228.03/1,271,989.39
  6. Step 6: Final answer
    x = 994,758.60

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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.