Home / 1,000,965.80-1,501,448.70-991,634.60

Finding the Fourth Proportional to 1,000,965.80, 1,501,448.70 and 991,634.60

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Solution

The fourth proportional to 1,000,965.80, 1,501,448.70 and 991,634.60 is: 1,487,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,965.80 : 1,501,448.70 = 991,634.60 : x
  2. Step 2: Convert to fraction form
    1,000,965.80/1,501,448.70 = 991,634.60/x
  3. Step 3: Cross multiply
    1,000,965.80x = 1,501,448.70 × 991,634.60
  4. Step 4: Simplify right side
    1,000,965.80x = 1,488,888,481,045.02
  5. Step 5: Solve for x
    x = 1,488,888,481,045.02/1,000,965.80
  6. Step 6: Final answer
    x = 1,487,451.90

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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.