Home / 813,162.86-1,122,189.37-450,552.80

Finding the Fourth Proportional to 813,162.86, 1,122,189.37 and 450,552.80

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Solution

The fourth proportional to 813,162.86, 1,122,189.37 and 450,552.80 is: 621,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,162.86 : 1,122,189.37 = 450,552.80 : x
  2. Step 2: Convert to fraction form
    813,162.86/1,122,189.37 = 450,552.80/x
  3. Step 3: Cross multiply
    813,162.86x = 1,122,189.37 × 450,552.80
  4. Step 4: Simplify right side
    813,162.86x = 505,605,562,783.74
  5. Step 5: Solve for x
    x = 505,605,562,783.74/813,162.86
  6. Step 6: Final answer
    x = 621,776.51

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1.5x scale

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.