Home / 669,180.40-1,003,770.60-638,076.40

Finding the Fourth Proportional to 669,180.40, 1,003,770.60 and 638,076.40

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Solution

The fourth proportional to 669,180.40, 1,003,770.60 and 638,076.40 is: 957,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,180.40 : 1,003,770.60 = 638,076.40 : x
  2. Step 2: Convert to fraction form
    669,180.40/1,003,770.60 = 638,076.40/x
  3. Step 3: Cross multiply
    669,180.40x = 1,003,770.60 × 638,076.40
  4. Step 4: Simplify right side
    669,180.40x = 640,482,330,873.84
  5. Step 5: Solve for x
    x = 640,482,330,873.84/669,180.40
  6. Step 6: Final answer
    x = 957,114.60

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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.