Home / 939,850.40-1,409,775.60-275,002.40

Finding the Fourth Proportional to 939,850.40, 1,409,775.60 and 275,002.40

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Solution

The fourth proportional to 939,850.40, 1,409,775.60 and 275,002.40 is: 412,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,850.40 : 1,409,775.60 = 275,002.40 : x
  2. Step 2: Convert to fraction form
    939,850.40/1,409,775.60 = 275,002.40/x
  3. Step 3: Cross multiply
    939,850.40x = 1,409,775.60 × 275,002.40
  4. Step 4: Simplify right side
    939,850.40x = 387,691,673,461.44
  5. Step 5: Solve for x
    x = 387,691,673,461.44/939,850.40
  6. Step 6: Final answer
    x = 412,503.60

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Double scale
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Similar ratio
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1.5x scale

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.