Home / 947,115.27-1,420,685.22-316,029.09

Finding the Fourth Proportional to 947,115.27, 1,420,685.22 and 316,029.09

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Solution

The fourth proportional to 947,115.27, 1,420,685.22 and 316,029.09 is: 474,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,115.27 : 1,420,685.22 = 316,029.09 : x
  2. Step 2: Convert to fraction form
    947,115.27/1,420,685.22 = 316,029.09/x
  3. Step 3: Cross multiply
    947,115.27x = 1,420,685.22 × 316,029.09
  4. Step 4: Simplify right side
    947,115.27x = 448,977,857,253.05
  5. Step 5: Solve for x
    x = 448,977,857,253.05/947,115.27
  6. Step 6: Final answer
    x = 474,047.74

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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.