Home / 1,278,871.93-1,917,892.63-425,714.46

Finding the Fourth Proportional to 1,278,871.93, 1,917,892.63 and 425,714.46

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Solution

The fourth proportional to 1,278,871.93, 1,917,892.63 and 425,714.46 is: 638,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,871.93 : 1,917,892.63 = 425,714.46 : x
  2. Step 2: Convert to fraction form
    1,278,871.93/1,917,892.63 = 425,714.46/x
  3. Step 3: Cross multiply
    1,278,871.93x = 1,917,892.63 × 425,714.46
  4. Step 4: Simplify right side
    1,278,871.93x = 816,474,625,318.43
  5. Step 5: Solve for x
    x = 816,474,625,318.43/1,278,871.93
  6. Step 6: Final answer
    x = 638,433.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.