Home / 631,612.14-947,072.20-311,059.10

Finding the Fourth Proportional to 631,612.14, 947,072.20 and 311,059.10

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Solution

The fourth proportional to 631,612.14, 947,072.20 and 311,059.10 is: 466,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,612.14 : 947,072.20 = 311,059.10 : x
  2. Step 2: Convert to fraction form
    631,612.14/947,072.20 = 311,059.10/x
  3. Step 3: Cross multiply
    631,612.14x = 947,072.20 × 311,059.10
  4. Step 4: Simplify right side
    631,612.14x = 294,595,426,167.02
  5. Step 5: Solve for x
    x = 294,595,426,167.02/631,612.14
  6. Step 6: Final answer
    x = 466,418.25

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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.