Home / 1,327,363.76-1,990,777.80-380,480.24

Finding the Fourth Proportional to 1,327,363.76, 1,990,777.80 and 380,480.24

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Solution

The fourth proportional to 1,327,363.76, 1,990,777.80 and 380,480.24 is: 570,643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,363.76 : 1,990,777.80 = 380,480.24 : x
  2. Step 2: Convert to fraction form
    1,327,363.76/1,990,777.80 = 380,480.24/x
  3. Step 3: Cross multiply
    1,327,363.76x = 1,990,777.80 × 380,480.24
  4. Step 4: Simplify right side
    1,327,363.76x = 757,451,615,130.67
  5. Step 5: Solve for x
    x = 757,451,615,130.67/1,327,363.76
  6. Step 6: Final answer
    x = 570,643.59

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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.