Home / 1,229,311.04-1,696,467.36-685,430.72

Finding the Fourth Proportional to 1,229,311.04, 1,696,467.36 and 685,430.72

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Solution

The fourth proportional to 1,229,311.04, 1,696,467.36 and 685,430.72 is: 945,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,311.04 : 1,696,467.36 = 685,430.72 : x
  2. Step 2: Convert to fraction form
    1,229,311.04/1,696,467.36 = 685,430.72/x
  3. Step 3: Cross multiply
    1,229,311.04x = 1,696,467.36 × 685,430.72
  4. Step 4: Simplify right side
    1,229,311.04x = 1,162,810,844,021.30
  5. Step 5: Solve for x
    x = 1,162,810,844,021.30/1,229,311.04
  6. Step 6: Final answer
    x = 945,904.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.