Home / 3,145,479-4,717,019.70-1,123,345.32

Finding the Fourth Proportional to 3,145,479, 4,717,019.70 and 1,123,345.32

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Solution

The fourth proportional to 3,145,479, 4,717,019.70 and 1,123,345.32 is: 1,684,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,479 : 4,717,019.70 = 1,123,345.32 : x
  2. Step 2: Convert to fraction form
    3,145,479/4,717,019.70 = 1,123,345.32/x
  3. Step 3: Cross multiply
    3,145,479x = 4,717,019.70 × 1,123,345.32
  4. Step 4: Simplify right side
    3,145,479x = 5,298,842,004,342.81
  5. Step 5: Solve for x
    x = 5,298,842,004,342.81/3,145,479
  6. Step 6: Final answer
    x = 1,684,589.85

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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.