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Finding the Fourth Proportional to 672,198, 927,652.68 and 370,411.44

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Solution

The fourth proportional to 672,198, 927,652.68 and 370,411.44 is: 511,178.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,198 : 927,652.68 = 370,411.44 : x
  2. Step 2: Convert to fraction form
    672,198/927,652.68 = 370,411.44/x
  3. Step 3: Cross multiply
    672,198x = 927,652.68 × 370,411.44
  4. Step 4: Simplify right side
    672,198x = 343,613,165,018.66
  5. Step 5: Solve for x
    x = 343,613,165,018.66/672,198
  6. Step 6: Final answer
    x = 511,178.50

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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.