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Finding the Fourth Proportional to 1,145,550, 1,717,893 and 920,357.04

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Solution

The fourth proportional to 1,145,550, 1,717,893 and 920,357.04 is: 1,380,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,550 : 1,717,893 = 920,357.04 : x
  2. Step 2: Convert to fraction form
    1,145,550/1,717,893 = 920,357.04/x
  3. Step 3: Cross multiply
    1,145,550x = 1,717,893 × 920,357.04
  4. Step 4: Simplify right side
    1,145,550x = 1,581,074,916,516.72
  5. Step 5: Solve for x
    x = 1,581,074,916,516.72/1,145,550
  6. Step 6: Final answer
    x = 1,380,188.48

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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.