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Finding the Fourth Proportional to 611,580.78, 844,002.45 and 339,652.98

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Solution

The fourth proportional to 611,580.78, 844,002.45 and 339,652.98 is: 468,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,580.78 : 844,002.45 = 339,652.98 : x
  2. Step 2: Convert to fraction form
    611,580.78/844,002.45 = 339,652.98/x
  3. Step 3: Cross multiply
    611,580.78x = 844,002.45 × 339,652.98
  4. Step 4: Simplify right side
    611,580.78x = 286,667,947,269.80
  5. Step 5: Solve for x
    x = 286,667,947,269.80/611,580.78
  6. Step 6: Final answer
    x = 468,732.76

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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.