Home / 1,188,925.50-1,782,338.46-909,689.34

Finding the Fourth Proportional to 1,188,925.50, 1,782,338.46 and 909,689.34

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Solution

The fourth proportional to 1,188,925.50, 1,782,338.46 and 909,689.34 is: 1,363,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,925.50 : 1,782,338.46 = 909,689.34 : x
  2. Step 2: Convert to fraction form
    1,188,925.50/1,782,338.46 = 909,689.34/x
  3. Step 3: Cross multiply
    1,188,925.50x = 1,782,338.46 × 909,689.34
  4. Step 4: Simplify right side
    1,188,925.50x = 1,621,374,297,334.02
  5. Step 5: Solve for x
    x = 1,621,374,297,334.02/1,188,925.50
  6. Step 6: Final answer
    x = 1,363,730.78

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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.