Home / 1,159,391.24-1,599,958.44-643,223.44

Finding the Fourth Proportional to 1,159,391.24, 1,599,958.44 and 643,223.44

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Solution

The fourth proportional to 1,159,391.24, 1,599,958.44 and 643,223.44 is: 887,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,391.24 : 1,599,958.44 = 643,223.44 : x
  2. Step 2: Convert to fraction form
    1,159,391.24/1,599,958.44 = 643,223.44/x
  3. Step 3: Cross multiply
    1,159,391.24x = 1,599,958.44 × 643,223.44
  4. Step 4: Simplify right side
    1,159,391.24x = 1,029,130,771,633.83
  5. Step 5: Solve for x
    x = 1,029,130,771,633.83/1,159,391.24
  6. Step 6: Final answer
    x = 887,647.53

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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.