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Finding the Fourth Proportional to 480,638.84, 721,067.54 and 255,880.84

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Solution

The fourth proportional to 480,638.84, 721,067.54 and 255,880.84 is: 383,879.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,638.84 : 721,067.54 = 255,880.84 : x
  2. Step 2: Convert to fraction form
    480,638.84/721,067.54 = 255,880.84/x
  3. Step 3: Cross multiply
    480,638.84x = 721,067.54 × 255,880.84
  4. Step 4: Simplify right side
    480,638.84x = 184,507,367,831.93
  5. Step 5: Solve for x
    x = 184,507,367,831.93/480,638.84
  6. Step 6: Final answer
    x = 383,879.44

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1.5x scale

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.