Home / 780,443.10-1,170,445.95-248,127.30

Finding the Fourth Proportional to 780,443.10, 1,170,445.95 and 248,127.30

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Solution

The fourth proportional to 780,443.10, 1,170,445.95 and 248,127.30 is: 372,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,443.10 : 1,170,445.95 = 248,127.30 : x
  2. Step 2: Convert to fraction form
    780,443.10/1,170,445.95 = 248,127.30/x
  3. Step 3: Cross multiply
    780,443.10x = 1,170,445.95 × 248,127.30
  4. Step 4: Simplify right side
    780,443.10x = 290,419,593,369.44
  5. Step 5: Solve for x
    x = 290,419,593,369.44/780,443.10
  6. Step 6: Final answer
    x = 372,121.42

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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.