Home / 839,764.98-1,259,647.53-278,799.48

Finding the Fourth Proportional to 839,764.98, 1,259,647.53 and 278,799.48

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Solution

The fourth proportional to 839,764.98, 1,259,647.53 and 278,799.48 is: 418,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,764.98 : 1,259,647.53 = 278,799.48 : x
  2. Step 2: Convert to fraction form
    839,764.98/1,259,647.53 = 278,799.48/x
  3. Step 3: Cross multiply
    839,764.98x = 1,259,647.53 × 278,799.48
  4. Step 4: Simplify right side
    839,764.98x = 351,189,076,347.28
  5. Step 5: Solve for x
    x = 351,189,076,347.28/839,764.98
  6. Step 6: Final answer
    x = 418,199.24

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Similar ratio
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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.