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Finding the Fourth Proportional to 491,767.13, 678,659.51 and 273,975.62

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Solution

The fourth proportional to 491,767.13, 678,659.51 and 273,975.62 is: 378,097.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,767.13 : 678,659.51 = 273,975.62 : x
  2. Step 2: Convert to fraction form
    491,767.13/678,659.51 = 273,975.62/x
  3. Step 3: Cross multiply
    491,767.13x = 678,659.51 × 273,975.62
  4. Step 4: Simplify right side
    491,767.13x = 185,936,157,312.79
  5. Step 5: Solve for x
    x = 185,936,157,312.79/491,767.13
  6. Step 6: Final answer
    x = 378,097.98

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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.