Home / 949,400.78-1,424,226.30-309,480.30

Finding the Fourth Proportional to 949,400.78, 1,424,226.30 and 309,480.30

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Solution

The fourth proportional to 949,400.78, 1,424,226.30 and 309,480.30 is: 464,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,400.78 : 1,424,226.30 = 309,480.30 : x
  2. Step 2: Convert to fraction form
    949,400.78/1,424,226.30 = 309,480.30/x
  3. Step 3: Cross multiply
    949,400.78x = 1,424,226.30 × 309,480.30
  4. Step 4: Simplify right side
    949,400.78x = 440,769,982,591.89
  5. Step 5: Solve for x
    x = 440,769,982,591.89/949,400.78
  6. Step 6: Final answer
    x = 464,261.24

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Double scale
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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.