Home / 684,186.42-944,327.16-397,871.70

Finding the Fourth Proportional to 684,186.42, 944,327.16 and 397,871.70

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Solution

The fourth proportional to 684,186.42, 944,327.16 and 397,871.70 is: 549,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,186.42 : 944,327.16 = 397,871.70 : x
  2. Step 2: Convert to fraction form
    684,186.42/944,327.16 = 397,871.70/x
  3. Step 3: Cross multiply
    684,186.42x = 944,327.16 × 397,871.70
  4. Step 4: Simplify right side
    684,186.42x = 375,721,052,505.37
  5. Step 5: Solve for x
    x = 375,721,052,505.37/684,186.42
  6. Step 6: Final answer
    x = 549,150.12

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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.