Home / 779,974.08-1,076,738.40-493,632.96

Finding the Fourth Proportional to 779,974.08, 1,076,738.40 and 493,632.96

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Solution

The fourth proportional to 779,974.08, 1,076,738.40 and 493,632.96 is: 681,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,974.08 : 1,076,738.40 = 493,632.96 : x
  2. Step 2: Convert to fraction form
    779,974.08/1,076,738.40 = 493,632.96/x
  3. Step 3: Cross multiply
    779,974.08x = 1,076,738.40 × 493,632.96
  4. Step 4: Simplify right side
    779,974.08x = 531,513,563,537.66
  5. Step 5: Solve for x
    x = 531,513,563,537.66/779,974.08
  6. Step 6: Final answer
    x = 681,450.29

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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.