Home / 681,607.20-1,022,410.80-208,288.50

Finding the Fourth Proportional to 681,607.20, 1,022,410.80 and 208,288.50

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Solution

The fourth proportional to 681,607.20, 1,022,410.80 and 208,288.50 is: 312,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,607.20 : 1,022,410.80 = 208,288.50 : x
  2. Step 2: Convert to fraction form
    681,607.20/1,022,410.80 = 208,288.50/x
  3. Step 3: Cross multiply
    681,607.20x = 1,022,410.80 × 208,288.50
  4. Step 4: Simplify right side
    681,607.20x = 212,956,411,915.80
  5. Step 5: Solve for x
    x = 212,956,411,915.80/681,607.20
  6. Step 6: Final answer
    x = 312,432.75

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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.