Home / 1,605,100.70-2,215,320.36-1,219,193.48

Finding the Fourth Proportional to 1,605,100.70, 2,215,320.36 and 1,219,193.48

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Solution

The fourth proportional to 1,605,100.70, 2,215,320.36 and 1,219,193.48 is: 1,682,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,100.70 : 2,215,320.36 = 1,219,193.48 : x
  2. Step 2: Convert to fraction form
    1,605,100.70/2,215,320.36 = 1,219,193.48/x
  3. Step 3: Cross multiply
    1,605,100.70x = 2,215,320.36 × 1,219,193.48
  4. Step 4: Simplify right side
    1,605,100.70x = 2,700,904,139,023.25
  5. Step 5: Solve for x
    x = 2,700,904,139,023.25/1,605,100.70
  6. Step 6: Final answer
    x = 1,682,700.74

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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.