Home / 852,077.40-1,277,630.10-319,615.80

Finding the Fourth Proportional to 852,077.40, 1,277,630.10 and 319,615.80

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Solution

The fourth proportional to 852,077.40, 1,277,630.10 and 319,615.80 is: 479,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,077.40 : 1,277,630.10 = 319,615.80 : x
  2. Step 2: Convert to fraction form
    852,077.40/1,277,630.10 = 319,615.80/x
  3. Step 3: Cross multiply
    852,077.40x = 1,277,630.10 × 319,615.80
  4. Step 4: Simplify right side
    852,077.40x = 408,350,766,515.58
  5. Step 5: Solve for x
    x = 408,350,766,515.58/852,077.40
  6. Step 6: Final answer
    x = 479,241.40

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1.5x scale

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.