Home / 549,949.70-758,917.35-304,933.21

Finding the Fourth Proportional to 549,949.70, 758,917.35 and 304,933.21

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Solution

The fourth proportional to 549,949.70, 758,917.35 and 304,933.21 is: 420,800.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,949.70 : 758,917.35 = 304,933.21 : x
  2. Step 2: Convert to fraction form
    549,949.70/758,917.35 = 304,933.21/x
  3. Step 3: Cross multiply
    549,949.70x = 758,917.35 × 304,933.21
  4. Step 4: Simplify right side
    549,949.70x = 231,419,101,762.90
  5. Step 5: Solve for x
    x = 231,419,101,762.90/549,949.70
  6. Step 6: Final answer
    x = 420,800.49

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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.