Home / 851,255.80-1,174,785.90-469,281.88

Finding the Fourth Proportional to 851,255.80, 1,174,785.90 and 469,281.88

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Solution

The fourth proportional to 851,255.80, 1,174,785.90 and 469,281.88 is: 647,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,255.80 : 1,174,785.90 = 469,281.88 : x
  2. Step 2: Convert to fraction form
    851,255.80/1,174,785.90 = 469,281.88/x
  3. Step 3: Cross multiply
    851,255.80x = 1,174,785.90 × 469,281.88
  4. Step 4: Simplify right side
    851,255.80x = 551,305,735,749.49
  5. Step 5: Solve for x
    x = 551,305,735,749.49/851,255.80
  6. Step 6: Final answer
    x = 647,638.16

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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.