Home / 905,666.76-1,250,916.26-660,262.88

Finding the Fourth Proportional to 905,666.76, 1,250,916.26 and 660,262.88

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Solution

The fourth proportional to 905,666.76, 1,250,916.26 and 660,262.88 is: 911,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,666.76 : 1,250,916.26 = 660,262.88 : x
  2. Step 2: Convert to fraction form
    905,666.76/1,250,916.26 = 660,262.88/x
  3. Step 3: Cross multiply
    905,666.76x = 1,250,916.26 × 660,262.88
  4. Step 4: Simplify right side
    905,666.76x = 825,933,562,910.53
  5. Step 5: Solve for x
    x = 825,933,562,910.53/905,666.76
  6. Step 6: Final answer
    x = 911,961.88

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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.