Home / 668,311.61-1,002,551.45-326,766.45

Finding the Fourth Proportional to 668,311.61, 1,002,551.45 and 326,766.45

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Solution

The fourth proportional to 668,311.61, 1,002,551.45 and 326,766.45 is: 490,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,311.61 : 1,002,551.45 = 326,766.45 : x
  2. Step 2: Convert to fraction form
    668,311.61/1,002,551.45 = 326,766.45/x
  3. Step 3: Cross multiply
    668,311.61x = 1,002,551.45 × 326,766.45
  4. Step 4: Simplify right side
    668,311.61x = 327,600,183,141.68
  5. Step 5: Solve for x
    x = 327,600,183,141.68/668,311.61
  6. Step 6: Final answer
    x = 490,190.77

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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.