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Finding the Fourth Proportional to 727,091.79, 1,091,136 and 253,777.14

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Solution

The fourth proportional to 727,091.79, 1,091,136 and 253,777.14 is: 380,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,091.79 : 1,091,136 = 253,777.14 : x
  2. Step 2: Convert to fraction form
    727,091.79/1,091,136 = 253,777.14/x
  3. Step 3: Cross multiply
    727,091.79x = 1,091,136 × 253,777.14
  4. Step 4: Simplify right side
    727,091.79x = 276,905,373,431.04
  5. Step 5: Solve for x
    x = 276,905,373,431.04/727,091.79
  6. Step 6: Final answer
    x = 380,839.64

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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.