Home / 851,120.70-1,174,546.56-469,155.72

Finding the Fourth Proportional to 851,120.70, 1,174,546.56 and 469,155.72

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Solution

The fourth proportional to 851,120.70, 1,174,546.56 and 469,155.72 is: 647,434.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,120.70 : 1,174,546.56 = 469,155.72 : x
  2. Step 2: Convert to fraction form
    851,120.70/1,174,546.56 = 469,155.72/x
  3. Step 3: Cross multiply
    851,120.70x = 1,174,546.56 × 469,155.72
  4. Step 4: Simplify right side
    851,120.70x = 551,045,237,030.32
  5. Step 5: Solve for x
    x = 551,045,237,030.32/851,120.70
  6. Step 6: Final answer
    x = 647,434.89

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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.