Home / 1,228,698.72-1,695,612.09-684,869.00

Finding the Fourth Proportional to 1,228,698.72, 1,695,612.09 and 684,869.00

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Solution

The fourth proportional to 1,228,698.72, 1,695,612.09 and 684,869.00 is: 945,123.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,698.72 : 1,695,612.09 = 684,869.00 : x
  2. Step 2: Convert to fraction form
    1,228,698.72/1,695,612.09 = 684,869.00/x
  3. Step 3: Cross multiply
    1,228,698.72x = 1,695,612.09 × 684,869.00
  4. Step 4: Simplify right side
    1,228,698.72x = 1,161,272,150,556.41
  5. Step 5: Solve for x
    x = 1,161,272,150,556.41/1,228,698.72
  6. Step 6: Final answer
    x = 945,123.59

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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.