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Finding the Fourth Proportional to 647,245.40, 893,091.96 and 375,201.86

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Solution

The fourth proportional to 647,245.40, 893,091.96 and 375,201.86 is: 517,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,245.40 : 893,091.96 = 375,201.86 : x
  2. Step 2: Convert to fraction form
    647,245.40/893,091.96 = 375,201.86/x
  3. Step 3: Cross multiply
    647,245.40x = 893,091.96 × 375,201.86
  4. Step 4: Simplify right side
    647,245.40x = 335,089,760,077.59
  5. Step 5: Solve for x
    x = 335,089,760,077.59/647,245.40
  6. Step 6: Final answer
    x = 517,716.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.