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Finding the Fourth Proportional to 511,615.79, 767,955.97 and 376,832.05

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Solution

The fourth proportional to 511,615.79, 767,955.97 and 376,832.05 is: 565,640.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,615.79 : 767,955.97 = 376,832.05 : x
  2. Step 2: Convert to fraction form
    511,615.79/767,955.97 = 376,832.05/x
  3. Step 3: Cross multiply
    511,615.79x = 767,955.97 × 376,832.05
  4. Step 4: Simplify right side
    511,615.79x = 289,390,422,484.84
  5. Step 5: Solve for x
    x = 289,390,422,484.84/511,615.79
  6. Step 6: Final answer
    x = 565,640.13

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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.