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Finding the Fourth Proportional to 672,086, 927,478.68 and 370,299.44

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Solution

The fourth proportional to 672,086, 927,478.68 and 370,299.44 is: 511,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,086 : 927,478.68 = 370,299.44 : x
  2. Step 2: Convert to fraction form
    672,086/927,478.68 = 370,299.44/x
  3. Step 3: Cross multiply
    672,086x = 927,478.68 × 370,299.44
  4. Step 4: Simplify right side
    672,086x = 343,444,835,815.94
  5. Step 5: Solve for x
    x = 343,444,835,815.94/672,086
  6. Step 6: Final answer
    x = 511,013.23

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1.5x scale

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.