Home / 851,580.78-1,175,127.80-488,749.25

Finding the Fourth Proportional to 851,580.78, 1,175,127.80 and 488,749.25

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Solution

The fourth proportional to 851,580.78, 1,175,127.80 and 488,749.25 is: 674,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,580.78 : 1,175,127.80 = 488,749.25 : x
  2. Step 2: Convert to fraction form
    851,580.78/1,175,127.80 = 488,749.25/x
  3. Step 3: Cross multiply
    851,580.78x = 1,175,127.80 × 488,749.25
  4. Step 4: Simplify right side
    851,580.78x = 574,342,822,584.77
  5. Step 5: Solve for x
    x = 574,342,822,584.77/851,580.78
  6. Step 6: Final answer
    x = 674,443.15

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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.