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Finding the Fourth Proportional to 611,007.96, 843,253.20 and 339,077.70

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Solution

The fourth proportional to 611,007.96, 843,253.20 and 339,077.70 is: 467,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,007.96 : 843,253.20 = 339,077.70 : x
  2. Step 2: Convert to fraction form
    611,007.96/843,253.20 = 339,077.70/x
  3. Step 3: Cross multiply
    611,007.96x = 843,253.20 × 339,077.70
  4. Step 4: Simplify right side
    611,007.96x = 285,928,355,573.64
  5. Step 5: Solve for x
    x = 285,928,355,573.64/611,007.96
  6. Step 6: Final answer
    x = 467,961.75

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1.5x scale

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.