Home / 857,744.72-1,183,683.92-490,215.73

Finding the Fourth Proportional to 857,744.72, 1,183,683.92 and 490,215.73

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Solution

The fourth proportional to 857,744.72, 1,183,683.92 and 490,215.73 is: 676,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,744.72 : 1,183,683.92 = 490,215.73 : x
  2. Step 2: Convert to fraction form
    857,744.72/1,183,683.92 = 490,215.73/x
  3. Step 3: Cross multiply
    857,744.72x = 1,183,683.92 × 490,215.73
  4. Step 4: Simplify right side
    857,744.72x = 580,260,476,932.06
  5. Step 5: Solve for x
    x = 580,260,476,932.06/857,744.72
  6. Step 6: Final answer
    x = 676,495.54

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1.5x scale

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.