Home / 947,850.56-1,421,775.84-316,764.38

Finding the Fourth Proportional to 947,850.56, 1,421,775.84 and 316,764.38

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Solution

The fourth proportional to 947,850.56, 1,421,775.84 and 316,764.38 is: 475,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,850.56 : 1,421,775.84 = 316,764.38 : x
  2. Step 2: Convert to fraction form
    947,850.56/1,421,775.84 = 316,764.38/x
  3. Step 3: Cross multiply
    947,850.56x = 1,421,775.84 × 316,764.38
  4. Step 4: Simplify right side
    947,850.56x = 450,367,942,456.58
  5. Step 5: Solve for x
    x = 450,367,942,456.58/947,850.56
  6. Step 6: Final answer
    x = 475,146.57

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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.