Home / 1,159,238.42-1,599,668.90-642,943.61

Finding the Fourth Proportional to 1,159,238.42, 1,599,668.90 and 642,943.61

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Solution

The fourth proportional to 1,159,238.42, 1,599,668.90 and 642,943.61 is: 887,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,238.42 : 1,599,668.90 = 642,943.61 : x
  2. Step 2: Convert to fraction form
    1,159,238.42/1,599,668.90 = 642,943.61/x
  3. Step 3: Cross multiply
    1,159,238.42x = 1,599,668.90 × 642,943.61
  4. Step 4: Simplify right side
    1,159,238.42x = 1,028,496,897,370.73
  5. Step 5: Solve for x
    x = 1,028,496,897,370.73/1,159,238.42
  6. Step 6: Final answer
    x = 887,217.75

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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.