Home / 1,190,723.95-1,643,192.49-646,855.39

Finding the Fourth Proportional to 1,190,723.95, 1,643,192.49 and 646,855.39

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Solution

The fourth proportional to 1,190,723.95, 1,643,192.49 and 646,855.39 is: 892,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,723.95 : 1,643,192.49 = 646,855.39 : x
  2. Step 2: Convert to fraction form
    1,190,723.95/1,643,192.49 = 646,855.39/x
  3. Step 3: Cross multiply
    1,190,723.95x = 1,643,192.49 × 646,855.39
  4. Step 4: Simplify right side
    1,190,723.95x = 1,062,907,918,964.02
  5. Step 5: Solve for x
    x = 1,062,907,918,964.02/1,190,723.95
  6. Step 6: Final answer
    x = 892,656.87

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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.