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Finding the Fourth Proportional to 718,711, 1,077,001.48 and 291,727.27

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Solution

The fourth proportional to 718,711, 1,077,001.48 and 291,727.27 is: 437,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,711 : 1,077,001.48 = 291,727.27 : x
  2. Step 2: Convert to fraction form
    718,711/1,077,001.48 = 291,727.27/x
  3. Step 3: Cross multiply
    718,711x = 1,077,001.48 × 291,727.27
  4. Step 4: Simplify right side
    718,711x = 314,190,701,546.36
  5. Step 5: Solve for x
    x = 314,190,701,546.36/718,711
  6. Step 6: Final answer
    x = 437,158.61

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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.