Home / 1,421,014.40-2,131,521.60-1,230,243.20

Finding the Fourth Proportional to 1,421,014.40, 2,131,521.60 and 1,230,243.20

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Solution

The fourth proportional to 1,421,014.40, 2,131,521.60 and 1,230,243.20 is: 1,845,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,014.40 : 2,131,521.60 = 1,230,243.20 : x
  2. Step 2: Convert to fraction form
    1,421,014.40/2,131,521.60 = 1,230,243.20/x
  3. Step 3: Cross multiply
    1,421,014.40x = 2,131,521.60 × 1,230,243.20
  4. Step 4: Simplify right side
    1,421,014.40x = 2,622,289,954,053.12
  5. Step 5: Solve for x
    x = 2,622,289,954,053.12/1,421,014.40
  6. Step 6: Final answer
    x = 1,845,364.80

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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.