Home / 876,039.20-1,314,058.80-720,519.20

Finding the Fourth Proportional to 876,039.20, 1,314,058.80 and 720,519.20

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Solution

The fourth proportional to 876,039.20, 1,314,058.80 and 720,519.20 is: 1,080,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,039.20 : 1,314,058.80 = 720,519.20 : x
  2. Step 2: Convert to fraction form
    876,039.20/1,314,058.80 = 720,519.20/x
  3. Step 3: Cross multiply
    876,039.20x = 1,314,058.80 × 720,519.20
  4. Step 4: Simplify right side
    876,039.20x = 946,804,595,328.96
  5. Step 5: Solve for x
    x = 946,804,595,328.96/876,039.20
  6. Step 6: Final answer
    x = 1,080,778.80

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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.