Home / 851,621.31-1,175,197.83-488,789.79

Finding the Fourth Proportional to 851,621.31, 1,175,197.83 and 488,789.79

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Solution

The fourth proportional to 851,621.31, 1,175,197.83 and 488,789.79 is: 674,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,621.31 : 1,175,197.83 = 488,789.79 : x
  2. Step 2: Convert to fraction form
    851,621.31/1,175,197.83 = 488,789.79/x
  3. Step 3: Cross multiply
    851,621.31x = 1,175,197.83 × 488,789.79
  4. Step 4: Simplify right side
    851,621.31x = 574,424,700,534.16
  5. Step 5: Solve for x
    x = 574,424,700,534.16/851,621.31
  6. Step 6: Final answer
    x = 674,507.19

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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.