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Finding the Fourth Proportional to 805,781.04, 1,208,424 and 265,937.88

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Solution

The fourth proportional to 805,781.04, 1,208,424 and 265,937.88 is: 398,825.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,781.04 : 1,208,424 = 265,937.88 : x
  2. Step 2: Convert to fraction form
    805,781.04/1,208,424 = 265,937.88/x
  3. Step 3: Cross multiply
    805,781.04x = 1,208,424 × 265,937.88
  4. Step 4: Simplify right side
    805,781.04x = 321,365,716,701.12
  5. Step 5: Solve for x
    x = 321,365,716,701.12/805,781.04
  6. Step 6: Final answer
    x = 398,825.12

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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.