Home / 457,831.59-687,051.95-188,180.84

Finding the Fourth Proportional to 457,831.59, 687,051.95 and 188,180.84

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Solution

The fourth proportional to 457,831.59, 687,051.95 and 188,180.84 is: 282,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,831.59 : 687,051.95 = 188,180.84 : x
  2. Step 2: Convert to fraction form
    457,831.59/687,051.95 = 188,180.84/x
  3. Step 3: Cross multiply
    457,831.59x = 687,051.95 × 188,180.84
  4. Step 4: Simplify right side
    457,831.59x = 129,290,008,698.47
  5. Step 5: Solve for x
    x = 129,290,008,698.47/457,831.59
  6. Step 6: Final answer
    x = 282,396.43

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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.