Home / 1,620,008.20-2,429,429.10-821,024.20

Finding the Fourth Proportional to 1,620,008.20, 2,429,429.10 and 821,024.20

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Solution

The fourth proportional to 1,620,008.20, 2,429,429.10 and 821,024.20 is: 1,231,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,008.20 : 2,429,429.10 = 821,024.20 : x
  2. Step 2: Convert to fraction form
    1,620,008.20/2,429,429.10 = 821,024.20/x
  3. Step 3: Cross multiply
    1,620,008.20x = 2,429,429.10 × 821,024.20
  4. Step 4: Simplify right side
    1,620,008.20x = 1,994,620,083,284.22
  5. Step 5: Solve for x
    x = 1,994,620,083,284.22/1,620,008.20
  6. Step 6: Final answer
    x = 1,231,240.73

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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.