Home / 851,713.50-1,277,786.25-319,236.06

Finding the Fourth Proportional to 851,713.50, 1,277,786.25 and 319,236.06

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Solution

The fourth proportional to 851,713.50, 1,277,786.25 and 319,236.06 is: 478,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,713.50 : 1,277,786.25 = 319,236.06 : x
  2. Step 2: Convert to fraction form
    851,713.50/1,277,786.25 = 319,236.06/x
  3. Step 3: Cross multiply
    851,713.50x = 1,277,786.25 × 319,236.06
  4. Step 4: Simplify right side
    851,713.50x = 407,915,447,972.18
  5. Step 5: Solve for x
    x = 407,915,447,972.18/851,713.50
  6. Step 6: Final answer
    x = 478,935.05

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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.