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Finding the Fourth Proportional to 1,913,687.69, 2,869,534.84 and 902,538.15

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Solution

The fourth proportional to 1,913,687.69, 2,869,534.84 and 902,538.15 is: 1,353,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,687.69 : 2,869,534.84 = 902,538.15 : x
  2. Step 2: Convert to fraction form
    1,913,687.69/2,869,534.84 = 902,538.15/x
  3. Step 3: Cross multiply
    1,913,687.69x = 2,869,534.84 × 902,538.15
  4. Step 4: Simplify right side
    1,913,687.69x = 2,589,864,654,529.30
  5. Step 5: Solve for x
    x = 2,589,864,654,529.30/1,913,687.69
  6. Step 6: Final answer
    x = 1,353,337.15

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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.