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Finding the Fourth Proportional to 672,215, 927,676.14 and 370,428.44

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Solution

The fourth proportional to 672,215, 927,676.14 and 370,428.44 is: 511,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,215 : 927,676.14 = 370,428.44 : x
  2. Step 2: Convert to fraction form
    672,215/927,676.14 = 370,428.44/x
  3. Step 3: Cross multiply
    672,215x = 927,676.14 × 370,428.44
  4. Step 4: Simplify right side
    672,215x = 343,637,625,365.42
  5. Step 5: Solve for x
    x = 343,637,625,365.42/672,215
  6. Step 6: Final answer
    x = 511,201.96

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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.