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Finding the Fourth Proportional to 505,003.84, 756,784 and 370,831.52

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Solution

The fourth proportional to 505,003.84, 756,784 and 370,831.52 is: 555,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,003.84 : 756,784 = 370,831.52 : x
  2. Step 2: Convert to fraction form
    505,003.84/756,784 = 370,831.52/x
  3. Step 3: Cross multiply
    505,003.84x = 756,784 × 370,831.52
  4. Step 4: Simplify right side
    505,003.84x = 280,639,361,031.68
  5. Step 5: Solve for x
    x = 280,639,361,031.68/505,003.84
  6. Step 6: Final answer
    x = 555,717.28

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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.