Home / 407,849.14-611,835.90-208,060.55

Finding the Fourth Proportional to 407,849.14, 611,835.90 and 208,060.55

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Solution

The fourth proportional to 407,849.14, 611,835.90 and 208,060.55 is: 312,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,849.14 : 611,835.90 = 208,060.55 : x
  2. Step 2: Convert to fraction form
    407,849.14/611,835.90 = 208,060.55/x
  3. Step 3: Cross multiply
    407,849.14x = 611,835.90 × 208,060.55
  4. Step 4: Simplify right side
    407,849.14x = 127,298,912,318.72
  5. Step 5: Solve for x
    x = 127,298,912,318.72/407,849.14
  6. Step 6: Final answer
    x = 312,122.55

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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.