Home / 1,680,780.87-2,516,742.63-1,005,260.31

Finding the Fourth Proportional to 1,680,780.87, 2,516,742.63 and 1,005,260.31

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Solution

The fourth proportional to 1,680,780.87, 2,516,742.63 and 1,005,260.31 is: 1,505,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,780.87 : 2,516,742.63 = 1,005,260.31 : x
  2. Step 2: Convert to fraction form
    1,680,780.87/2,516,742.63 = 1,005,260.31/x
  3. Step 3: Cross multiply
    1,680,780.87x = 2,516,742.63 × 1,005,260.31
  4. Step 4: Simplify right side
    1,680,780.87x = 2,529,981,476,424.02
  5. Step 5: Solve for x
    x = 2,529,981,476,424.02/1,680,780.87
  6. Step 6: Final answer
    x = 1,505,241.71

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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.