Home / 876,139.20-1,314,111.60-245,116.80

Finding the Fourth Proportional to 876,139.20, 1,314,111.60 and 245,116.80

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Solution

The fourth proportional to 876,139.20, 1,314,111.60 and 245,116.80 is: 367,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,139.20 : 1,314,111.60 = 245,116.80 : x
  2. Step 2: Convert to fraction form
    876,139.20/1,314,111.60 = 245,116.80/x
  3. Step 3: Cross multiply
    876,139.20x = 1,314,111.60 × 245,116.80
  4. Step 4: Simplify right side
    876,139.20x = 322,110,830,234.88
  5. Step 5: Solve for x
    x = 322,110,830,234.88/876,139.20
  6. Step 6: Final answer
    x = 367,648.01

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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.