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Finding the Fourth Proportional to 773,879.72, 1,160,818.03 and 205,317.81

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Solution

The fourth proportional to 773,879.72, 1,160,818.03 and 205,317.81 is: 307,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,879.72 : 1,160,818.03 = 205,317.81 : x
  2. Step 2: Convert to fraction form
    773,879.72/1,160,818.03 = 205,317.81/x
  3. Step 3: Cross multiply
    773,879.72x = 1,160,818.03 × 205,317.81
  4. Step 4: Simplify right side
    773,879.72x = 238,336,615,728.11
  5. Step 5: Solve for x
    x = 238,336,615,728.11/773,879.72
  6. Step 6: Final answer
    x = 307,976.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.