Home / 778,021.96-1,073,755.70-451,406.88

Finding the Fourth Proportional to 778,021.96, 1,073,755.70 and 451,406.88

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Solution

The fourth proportional to 778,021.96, 1,073,755.70 and 451,406.88 is: 622,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,021.96 : 1,073,755.70 = 451,406.88 : x
  2. Step 2: Convert to fraction form
    778,021.96/1,073,755.70 = 451,406.88/x
  3. Step 3: Cross multiply
    778,021.96x = 1,073,755.70 × 451,406.88
  4. Step 4: Simplify right side
    778,021.96x = 484,700,710,419.22
  5. Step 5: Solve for x
    x = 484,700,710,419.22/778,021.96
  6. Step 6: Final answer
    x = 622,991.04

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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.