Home / 1,299,647.58-1,793,393.28-718,858.20

Finding the Fourth Proportional to 1,299,647.58, 1,793,393.28 and 718,858.20

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Solution

The fourth proportional to 1,299,647.58, 1,793,393.28 and 718,858.20 is: 991,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,647.58 : 1,793,393.28 = 718,858.20 : x
  2. Step 2: Convert to fraction form
    1,299,647.58/1,793,393.28 = 718,858.20/x
  3. Step 3: Cross multiply
    1,299,647.58x = 1,793,393.28 × 718,858.20
  4. Step 4: Simplify right side
    1,299,647.58x = 1,289,195,465,152.90
  5. Step 5: Solve for x
    x = 1,289,195,465,152.90/1,299,647.58
  6. Step 6: Final answer
    x = 991,957.73

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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.