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Finding the Fourth Proportional to 577,881, 797,475.78 and 376,677

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Solution

The fourth proportional to 577,881, 797,475.78 and 376,677 is: 519,814.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,881 : 797,475.78 = 376,677 : x
  2. Step 2: Convert to fraction form
    577,881/797,475.78 = 376,677/x
  3. Step 3: Cross multiply
    577,881x = 797,475.78 × 376,677
  4. Step 4: Simplify right side
    577,881x = 300,390,784,383.06
  5. Step 5: Solve for x
    x = 300,390,784,383.06/577,881
  6. Step 6: Final answer
    x = 519,814.26

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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.