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Finding the Fourth Proportional to 901,911.12, 1,353,074 and 270,836.88

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Solution

The fourth proportional to 901,911.12, 1,353,074 and 270,836.88 is: 406,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,911.12 : 1,353,074 = 270,836.88 : x
  2. Step 2: Convert to fraction form
    901,911.12/1,353,074 = 270,836.88/x
  3. Step 3: Cross multiply
    901,911.12x = 1,353,074 × 270,836.88
  4. Step 4: Simplify right side
    901,911.12x = 366,462,340,569.12
  5. Step 5: Solve for x
    x = 366,462,340,569.12/901,911.12
  6. Step 6: Final answer
    x = 406,317.58

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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.