Home / 1,994,102.40-2,989,112.40-981,667.20

Finding the Fourth Proportional to 1,994,102.40, 2,989,112.40 and 981,667.20

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Solution

The fourth proportional to 1,994,102.40, 2,989,112.40 and 981,667.20 is: 1,471,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,102.40 : 2,989,112.40 = 981,667.20 : x
  2. Step 2: Convert to fraction form
    1,994,102.40/2,989,112.40 = 981,667.20/x
  3. Step 3: Cross multiply
    1,994,102.40x = 2,989,112.40 × 981,667.20
  4. Step 4: Simplify right side
    1,994,102.40x = 2,934,313,600,193.28
  5. Step 5: Solve for x
    x = 2,934,313,600,193.28/1,994,102.40
  6. Step 6: Final answer
    x = 1,471,495.95

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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.