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Finding the Fourth Proportional to 763,791.64, 1,054,065.82 and 424,259.88

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Solution

The fourth proportional to 763,791.64, 1,054,065.82 and 424,259.88 is: 585,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,791.64 : 1,054,065.82 = 424,259.88 : x
  2. Step 2: Convert to fraction form
    763,791.64/1,054,065.82 = 424,259.88/x
  3. Step 3: Cross multiply
    763,791.64x = 1,054,065.82 × 424,259.88
  4. Step 4: Simplify right side
    763,791.64x = 447,197,838,305.30
  5. Step 5: Solve for x
    x = 447,197,838,305.30/763,791.64
  6. Step 6: Final answer
    x = 585,497.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.