Home / 885,890.15-1,222,103.21-579,831.78

Finding the Fourth Proportional to 885,890.15, 1,222,103.21 and 579,831.78

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Solution

The fourth proportional to 885,890.15, 1,222,103.21 and 579,831.78 is: 799,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,890.15 : 1,222,103.21 = 579,831.78 : x
  2. Step 2: Convert to fraction form
    885,890.15/1,222,103.21 = 579,831.78/x
  3. Step 3: Cross multiply
    885,890.15x = 1,222,103.21 × 579,831.78
  4. Step 4: Simplify right side
    885,890.15x = 708,614,276,698.86
  5. Step 5: Solve for x
    x = 708,614,276,698.86/885,890.15
  6. Step 6: Final answer
    x = 799,889.56

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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.