Home / 991,014.40-1,367,791.66-646,251.80

Finding the Fourth Proportional to 991,014.40, 1,367,791.66 and 646,251.80

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Solution

The fourth proportional to 991,014.40, 1,367,791.66 and 646,251.80 is: 891,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,014.40 : 1,367,791.66 = 646,251.80 : x
  2. Step 2: Convert to fraction form
    991,014.40/1,367,791.66 = 646,251.80/x
  3. Step 3: Cross multiply
    991,014.40x = 1,367,791.66 × 646,251.80
  4. Step 4: Simplify right side
    991,014.40x = 883,937,822,299.99
  5. Step 5: Solve for x
    x = 883,937,822,299.99/991,014.40
  6. Step 6: Final answer
    x = 891,952.55

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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.