Home / 1,410,564.80-2,117,920.80-991,697.60

Finding the Fourth Proportional to 1,410,564.80, 2,117,920.80 and 991,697.60

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Solution

The fourth proportional to 1,410,564.80, 2,117,920.80 and 991,697.60 is: 1,489,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410,564.80 : 2,117,920.80 = 991,697.60 : x
  2. Step 2: Convert to fraction form
    1,410,564.80/2,117,920.80 = 991,697.60/x
  3. Step 3: Cross multiply
    1,410,564.80x = 2,117,920.80 × 991,697.60
  4. Step 4: Simplify right side
    1,410,564.80x = 2,100,336,974,350.08
  5. Step 5: Solve for x
    x = 2,100,336,974,350.08/1,410,564.80
  6. Step 6: Final answer
    x = 1,489,004.24

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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.