Home / 727,861.38-1,092,405.51-307,438.98

Finding the Fourth Proportional to 727,861.38, 1,092,405.51 and 307,438.98

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Solution

The fourth proportional to 727,861.38, 1,092,405.51 and 307,438.98 is: 461,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,861.38 : 1,092,405.51 = 307,438.98 : x
  2. Step 2: Convert to fraction form
    727,861.38/1,092,405.51 = 307,438.98/x
  3. Step 3: Cross multiply
    727,861.38x = 1,092,405.51 × 307,438.98
  4. Step 4: Simplify right side
    727,861.38x = 335,848,035,740.78
  5. Step 5: Solve for x
    x = 335,848,035,740.78/727,861.38
  6. Step 6: Final answer
    x = 461,417.58

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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.