Home / 681,657.60-1,022,486.40-642,950.40

Finding the Fourth Proportional to 681,657.60, 1,022,486.40 and 642,950.40

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Solution

The fourth proportional to 681,657.60, 1,022,486.40 and 642,950.40 is: 964,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,657.60 : 1,022,486.40 = 642,950.40 : x
  2. Step 2: Convert to fraction form
    681,657.60/1,022,486.40 = 642,950.40/x
  3. Step 3: Cross multiply
    681,657.60x = 1,022,486.40 × 642,950.40
  4. Step 4: Simplify right side
    681,657.60x = 657,408,039,874.56
  5. Step 5: Solve for x
    x = 657,408,039,874.56/681,657.60
  6. Step 6: Final answer
    x = 964,425.60

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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.