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Finding the Fourth Proportional to 614,775.70, 848,388.82 and 342,843.90

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Solution

The fourth proportional to 614,775.70, 848,388.82 and 342,843.90 is: 473,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,775.70 : 848,388.82 = 342,843.90 : x
  2. Step 2: Convert to fraction form
    614,775.70/848,388.82 = 342,843.90/x
  3. Step 3: Cross multiply
    614,775.70x = 848,388.82 × 342,843.90
  4. Step 4: Simplify right side
    614,775.70x = 290,864,930,050.98
  5. Step 5: Solve for x
    x = 290,864,930,050.98/614,775.70
  6. Step 6: Final answer
    x = 473,123.66

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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.