Home / 1,410,553.80-2,117,904.30-991,686.60

Finding the Fourth Proportional to 1,410,553.80, 2,117,904.30 and 991,686.60

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Solution

The fourth proportional to 1,410,553.80, 2,117,904.30 and 991,686.60 is: 1,488,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410,553.80 : 2,117,904.30 = 991,686.60 : x
  2. Step 2: Convert to fraction form
    1,410,553.80/2,117,904.30 = 991,686.60/x
  3. Step 3: Cross multiply
    1,410,553.80x = 2,117,904.30 × 991,686.60
  4. Step 4: Simplify right side
    1,410,553.80x = 2,100,297,314,392.38
  5. Step 5: Solve for x
    x = 2,100,297,314,392.38/1,410,553.80
  6. Step 6: Final answer
    x = 1,488,987.74

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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.