Home / 780,278.75-1,170,418.13-189,302.75

Finding the Fourth Proportional to 780,278.75, 1,170,418.13 and 189,302.75

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Solution

The fourth proportional to 780,278.75, 1,170,418.13 and 189,302.75 is: 283,954.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,278.75 : 1,170,418.13 = 189,302.75 : x
  2. Step 2: Convert to fraction form
    780,278.75/1,170,418.13 = 189,302.75/x
  3. Step 3: Cross multiply
    780,278.75x = 1,170,418.13 × 189,302.75
  4. Step 4: Simplify right side
    780,278.75x = 221,563,369,712.34
  5. Step 5: Solve for x
    x = 221,563,369,712.34/780,278.75
  6. Step 6: Final answer
    x = 283,954.13

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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.