Home / 1,190,722.95-1,643,191.11-646,854.39

Finding the Fourth Proportional to 1,190,722.95, 1,643,191.11 and 646,854.39

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Solution

The fourth proportional to 1,190,722.95, 1,643,191.11 and 646,854.39 is: 892,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,722.95 : 1,643,191.11 = 646,854.39 : x
  2. Step 2: Convert to fraction form
    1,190,722.95/1,643,191.11 = 646,854.39/x
  3. Step 3: Cross multiply
    1,190,722.95x = 1,643,191.11 × 646,854.39
  4. Step 4: Simplify right side
    1,190,722.95x = 1,062,905,383,112.47
  5. Step 5: Solve for x
    x = 1,062,905,383,112.47/1,190,722.95
  6. Step 6: Final answer
    x = 892,655.49

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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.