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Finding the Fourth Proportional to 622,902.06, 859,672.17 and 381,347.10

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Solution

The fourth proportional to 622,902.06, 859,672.17 and 381,347.10 is: 526,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,902.06 : 859,672.17 = 381,347.10 : x
  2. Step 2: Convert to fraction form
    622,902.06/859,672.17 = 381,347.10/x
  3. Step 3: Cross multiply
    622,902.06x = 859,672.17 × 381,347.10
  4. Step 4: Simplify right side
    622,902.06x = 327,833,488,980.21
  5. Step 5: Solve for x
    x = 327,833,488,980.21/622,902.06
  6. Step 6: Final answer
    x = 526,300.22

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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.