Home / 1,297,999.20-1,945,832.40-824,440.80

Finding the Fourth Proportional to 1,297,999.20, 1,945,832.40 and 824,440.80

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Solution

The fourth proportional to 1,297,999.20, 1,945,832.40 and 824,440.80 is: 1,235,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,999.20 : 1,945,832.40 = 824,440.80 : x
  2. Step 2: Convert to fraction form
    1,297,999.20/1,945,832.40 = 824,440.80/x
  3. Step 3: Cross multiply
    1,297,999.20x = 1,945,832.40 × 824,440.80
  4. Step 4: Simplify right side
    1,297,999.20x = 1,604,223,620,521.92
  5. Step 5: Solve for x
    x = 1,604,223,620,521.92/1,297,999.20
  6. Step 6: Final answer
    x = 1,235,920.35

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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.