Home / 851,620.31-1,175,196.45-488,788.79

Finding the Fourth Proportional to 851,620.31, 1,175,196.45 and 488,788.79

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Solution

The fourth proportional to 851,620.31, 1,175,196.45 and 488,788.79 is: 674,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,620.31 : 1,175,196.45 = 488,788.79 : x
  2. Step 2: Convert to fraction form
    851,620.31/1,175,196.45 = 488,788.79/x
  3. Step 3: Cross multiply
    851,620.31x = 1,175,196.45 × 488,788.79
  4. Step 4: Simplify right side
    851,620.31x = 574,422,844,931.81
  5. Step 5: Solve for x
    x = 574,422,844,931.81/851,620.31
  6. Step 6: Final answer
    x = 674,505.81

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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.