Home / 1,321,263.38-1,823,345.28-717,651.38

Finding the Fourth Proportional to 1,321,263.38, 1,823,345.28 and 717,651.38

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Solution

The fourth proportional to 1,321,263.38, 1,823,345.28 and 717,651.38 is: 990,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,263.38 : 1,823,345.28 = 717,651.38 : x
  2. Step 2: Convert to fraction form
    1,321,263.38/1,823,345.28 = 717,651.38/x
  3. Step 3: Cross multiply
    1,321,263.38x = 1,823,345.28 × 717,651.38
  4. Step 4: Simplify right side
    1,321,263.38x = 1,308,526,247,291.76
  5. Step 5: Solve for x
    x = 1,308,526,247,291.76/1,321,263.38
  6. Step 6: Final answer
    x = 990,359.89

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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.