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Finding the Fourth Proportional to 511,442.06, 767,384.69 and 274,507.88

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Solution

The fourth proportional to 511,442.06, 767,384.69 and 274,507.88 is: 411,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,442.06 : 767,384.69 = 274,507.88 : x
  2. Step 2: Convert to fraction form
    511,442.06/767,384.69 = 274,507.88/x
  3. Step 3: Cross multiply
    511,442.06x = 767,384.69 × 274,507.88
  4. Step 4: Simplify right side
    511,442.06x = 210,653,139,186.89
  5. Step 5: Solve for x
    x = 210,653,139,186.89/511,442.06
  6. Step 6: Final answer
    x = 411,880.75

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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.