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Finding the Fourth Proportional to 672,225, 927,689.94 and 370,438.44

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Solution

The fourth proportional to 672,225, 927,689.94 and 370,438.44 is: 511,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,225 : 927,689.94 = 370,438.44 : x
  2. Step 2: Convert to fraction form
    672,225/927,689.94 = 370,438.44/x
  3. Step 3: Cross multiply
    672,225x = 927,689.94 × 370,438.44
  4. Step 4: Simplify right side
    672,225x = 343,652,014,177.29
  5. Step 5: Solve for x
    x = 343,652,014,177.29/672,225
  6. Step 6: Final answer
    x = 511,215.76

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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.