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Finding the Fourth Proportional to 566,279.69, 781,290.04 and 321,224.06

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Solution

The fourth proportional to 566,279.69, 781,290.04 and 321,224.06 is: 443,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,279.69 : 781,290.04 = 321,224.06 : x
  2. Step 2: Convert to fraction form
    566,279.69/781,290.04 = 321,224.06/x
  3. Step 3: Cross multiply
    566,279.69x = 781,290.04 × 321,224.06
  4. Step 4: Simplify right side
    566,279.69x = 250,969,153,976.85
  5. Step 5: Solve for x
    x = 250,969,153,976.85/566,279.69
  6. Step 6: Final answer
    x = 443,189.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.