Home / 1,228,890.60-1,695,877.38-685,060.92

Finding the Fourth Proportional to 1,228,890.60, 1,695,877.38 and 685,060.92

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Solution

The fourth proportional to 1,228,890.60, 1,695,877.38 and 685,060.92 is: 945,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,890.60 : 1,695,877.38 = 685,060.92 : x
  2. Step 2: Convert to fraction form
    1,228,890.60/1,695,877.38 = 685,060.92/x
  3. Step 3: Cross multiply
    1,228,890.60x = 1,695,877.38 × 685,060.92
  4. Step 4: Simplify right side
    1,228,890.60x = 1,161,779,318,149.99
  5. Step 5: Solve for x
    x = 1,161,779,318,149.99/1,228,890.60
  6. Step 6: Final answer
    x = 945,388.73

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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.