Home / 1,003,890.74-1,384,856.06-640,933.25

Finding the Fourth Proportional to 1,003,890.74, 1,384,856.06 and 640,933.25

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Solution

The fourth proportional to 1,003,890.74, 1,384,856.06 and 640,933.25 is: 884,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,890.74 : 1,384,856.06 = 640,933.25 : x
  2. Step 2: Convert to fraction form
    1,003,890.74/1,384,856.06 = 640,933.25/x
  3. Step 3: Cross multiply
    1,003,890.74x = 1,384,856.06 × 640,933.25
  4. Step 4: Simplify right side
    1,003,890.74x = 887,600,285,189.05
  5. Step 5: Solve for x
    x = 887,600,285,189.05/1,003,890.74
  6. Step 6: Final answer
    x = 884,160.25

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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.