Home / 782,422.92-1,079,668.98-621,667.08

Finding the Fourth Proportional to 782,422.92, 1,079,668.98 and 621,667.08

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Solution

The fourth proportional to 782,422.92, 1,079,668.98 and 621,667.08 is: 857,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,422.92 : 1,079,668.98 = 621,667.08 : x
  2. Step 2: Convert to fraction form
    782,422.92/1,079,668.98 = 621,667.08/x
  3. Step 3: Cross multiply
    782,422.92x = 1,079,668.98 × 621,667.08
  4. Step 4: Simplify right side
    782,422.92x = 671,194,662,163.18
  5. Step 5: Solve for x
    x = 671,194,662,163.18/782,422.92
  6. Step 6: Final answer
    x = 857,841.26

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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.