Home / 1,243,122.36-1,715,023.02-699,133.38

Finding the Fourth Proportional to 1,243,122.36, 1,715,023.02 and 699,133.38

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Solution

The fourth proportional to 1,243,122.36, 1,715,023.02 and 699,133.38 is: 964,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,122.36 : 1,715,023.02 = 699,133.38 : x
  2. Step 2: Convert to fraction form
    1,243,122.36/1,715,023.02 = 699,133.38/x
  3. Step 3: Cross multiply
    1,243,122.36x = 1,715,023.02 × 699,133.38
  4. Step 4: Simplify right side
    1,243,122.36x = 1,199,029,840,750.41
  5. Step 5: Solve for x
    x = 1,199,029,840,750.41/1,243,122.36
  6. Step 6: Final answer
    x = 964,530.83

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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.