Home / 1,121,454.20-1,682,570.10-490,820.60

Finding the Fourth Proportional to 1,121,454.20, 1,682,570.10 and 490,820.60

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Solution

The fourth proportional to 1,121,454.20, 1,682,570.10 and 490,820.60 is: 736,401.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,454.20 : 1,682,570.10 = 490,820.60 : x
  2. Step 2: Convert to fraction form
    1,121,454.20/1,682,570.10 = 490,820.60/x
  3. Step 3: Cross multiply
    1,121,454.20x = 1,682,570.10 × 490,820.60
  4. Step 4: Simplify right side
    1,121,454.20x = 825,840,066,024.06
  5. Step 5: Solve for x
    x = 825,840,066,024.06/1,121,454.20
  6. Step 6: Final answer
    x = 736,401.06

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1.5x scale

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.