Home / 407,850.14-611,837.40-208,061.55

Finding the Fourth Proportional to 407,850.14, 611,837.40 and 208,061.55

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Solution

The fourth proportional to 407,850.14, 611,837.40 and 208,061.55 is: 312,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,850.14 : 611,837.40 = 208,061.55 : x
  2. Step 2: Convert to fraction form
    407,850.14/611,837.40 = 208,061.55/x
  3. Step 3: Cross multiply
    407,850.14x = 611,837.40 × 208,061.55
  4. Step 4: Simplify right side
    407,850.14x = 127,299,837,791.97
  5. Step 5: Solve for x
    x = 127,299,837,791.97/407,850.14
  6. Step 6: Final answer
    x = 312,124.05

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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.