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Finding the Fourth Proportional to 612,871.49, 843,837.48 and 520,796.57

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Solution

The fourth proportional to 612,871.49, 843,837.48 and 520,796.57 is: 717,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,871.49 : 843,837.48 = 520,796.57 : x
  2. Step 2: Convert to fraction form
    612,871.49/843,837.48 = 520,796.57/x
  3. Step 3: Cross multiply
    612,871.49x = 843,837.48 × 520,796.57
  4. Step 4: Simplify right side
    612,871.49x = 439,467,661,002.26
  5. Step 5: Solve for x
    x = 439,467,661,002.26/612,871.49
  6. Step 6: Final answer
    x = 717,063.31

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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.