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Finding the Fourth Proportional to 611,200.32, 843,463.80 and 339,273.60

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Solution

The fourth proportional to 611,200.32, 843,463.80 and 339,273.60 is: 468,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,200.32 : 843,463.80 = 339,273.60 : x
  2. Step 2: Convert to fraction form
    611,200.32/843,463.80 = 339,273.60/x
  3. Step 3: Cross multiply
    611,200.32x = 843,463.80 × 339,273.60
  4. Step 4: Simplify right side
    611,200.32x = 286,164,999,895.68
  5. Step 5: Solve for x
    x = 286,164,999,895.68/611,200.32
  6. Step 6: Final answer
    x = 468,201.65

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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.