Home / 779,974.33-1,076,738.75-493,633.21

Finding the Fourth Proportional to 779,974.33, 1,076,738.75 and 493,633.21

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Solution

The fourth proportional to 779,974.33, 1,076,738.75 and 493,633.21 is: 681,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,974.33 : 1,076,738.75 = 493,633.21 : x
  2. Step 2: Convert to fraction form
    779,974.33/1,076,738.75 = 493,633.21/x
  3. Step 3: Cross multiply
    779,974.33x = 1,076,738.75 × 493,633.21
  4. Step 4: Simplify right side
    779,974.33x = 531,514,003,025.72
  5. Step 5: Solve for x
    x = 531,514,003,025.72/779,974.33
  6. Step 6: Final answer
    x = 681,450.64

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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.