Home / 1,994,135.40-2,989,161.90-981,700.20

Finding the Fourth Proportional to 1,994,135.40, 2,989,161.90 and 981,700.20

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Solution

The fourth proportional to 1,994,135.40, 2,989,161.90 and 981,700.20 is: 1,471,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,135.40 : 2,989,161.90 = 981,700.20 : x
  2. Step 2: Convert to fraction form
    1,994,135.40/2,989,161.90 = 981,700.20/x
  3. Step 3: Cross multiply
    1,994,135.40x = 2,989,161.90 × 981,700.20
  4. Step 4: Simplify right side
    1,994,135.40x = 2,934,460,835,062.38
  5. Step 5: Solve for x
    x = 2,934,460,835,062.38/1,994,135.40
  6. Step 6: Final answer
    x = 1,471,545.43

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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.