Home / 818,831.28-1,129,953.24-456,236.40

Finding the Fourth Proportional to 818,831.28, 1,129,953.24 and 456,236.40

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Solution

The fourth proportional to 818,831.28, 1,129,953.24 and 456,236.40 is: 629,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,831.28 : 1,129,953.24 = 456,236.40 : x
  2. Step 2: Convert to fraction form
    818,831.28/1,129,953.24 = 456,236.40/x
  3. Step 3: Cross multiply
    818,831.28x = 1,129,953.24 × 456,236.40
  4. Step 4: Simplify right side
    818,831.28x = 515,525,798,385.94
  5. Step 5: Solve for x
    x = 515,525,798,385.94/818,831.28
  6. Step 6: Final answer
    x = 629,587.33

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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.