Home / 851,138.36-1,174,570.66-469,171.52

Finding the Fourth Proportional to 851,138.36, 1,174,570.66 and 469,171.52

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Solution

The fourth proportional to 851,138.36, 1,174,570.66 and 469,171.52 is: 647,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,138.36 : 1,174,570.66 = 469,171.52 : x
  2. Step 2: Convert to fraction form
    851,138.36/1,174,570.66 = 469,171.52/x
  3. Step 3: Cross multiply
    851,138.36x = 1,174,570.66 × 469,171.52
  4. Step 4: Simplify right side
    851,138.36x = 551,075,101,899.60
  5. Step 5: Solve for x
    x = 551,075,101,899.60/851,138.36
  6. Step 6: Final answer
    x = 647,456.55

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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.