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Finding the Fourth Proportional to 480,520.86, 663,119.91 and 276,584.46

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Solution

The fourth proportional to 480,520.86, 663,119.91 and 276,584.46 is: 381,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,520.86 : 663,119.91 = 276,584.46 : x
  2. Step 2: Convert to fraction form
    480,520.86/663,119.91 = 276,584.46/x
  3. Step 3: Cross multiply
    480,520.86x = 663,119.91 × 276,584.46
  4. Step 4: Simplify right side
    480,520.86x = 183,408,662,222.60
  5. Step 5: Solve for x
    x = 183,408,662,222.60/480,520.86
  6. Step 6: Final answer
    x = 381,687.20

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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.