Home / 851,996.40-1,277,508.60-319,534.80

Finding the Fourth Proportional to 851,996.40, 1,277,508.60 and 319,534.80

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Solution

The fourth proportional to 851,996.40, 1,277,508.60 and 319,534.80 is: 479,119.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,996.40 : 1,277,508.60 = 319,534.80 : x
  2. Step 2: Convert to fraction form
    851,996.40/1,277,508.60 = 319,534.80/x
  3. Step 3: Cross multiply
    851,996.40x = 1,277,508.60 × 319,534.80
  4. Step 4: Simplify right side
    851,996.40x = 408,208,454,999.28
  5. Step 5: Solve for x
    x = 408,208,454,999.28/851,996.40
  6. Step 6: Final answer
    x = 479,119.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.