Home / 1,521,350.70-2,099,604.82-842,287.20

Finding the Fourth Proportional to 1,521,350.70, 2,099,604.82 and 842,287.20

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Solution

The fourth proportional to 1,521,350.70, 2,099,604.82 and 842,287.20 is: 1,162,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,350.70 : 2,099,604.82 = 842,287.20 : x
  2. Step 2: Convert to fraction form
    1,521,350.70/2,099,604.82 = 842,287.20/x
  3. Step 3: Cross multiply
    1,521,350.70x = 2,099,604.82 × 842,287.20
  4. Step 4: Simplify right side
    1,521,350.70x = 1,768,470,264,944.30
  5. Step 5: Solve for x
    x = 1,768,470,264,944.30/1,521,350.70
  6. Step 6: Final answer
    x = 1,162,434.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.