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Finding the Fourth Proportional to 407,643.38, 610,799.23 and 247,768.21

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Solution

The fourth proportional to 407,643.38, 610,799.23 and 247,768.21 is: 371,247.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,643.38 : 610,799.23 = 247,768.21 : x
  2. Step 2: Convert to fraction form
    407,643.38/610,799.23 = 247,768.21/x
  3. Step 3: Cross multiply
    407,643.38x = 610,799.23 × 247,768.21
  4. Step 4: Simplify right side
    407,643.38x = 151,336,631,886.48
  5. Step 5: Solve for x
    x = 151,336,631,886.48/407,643.38
  6. Step 6: Final answer
    x = 371,247.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.