Home / 565,944.26-780,999.30-320,975.64

Finding the Fourth Proportional to 565,944.26, 780,999.30 and 320,975.64

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Solution

The fourth proportional to 565,944.26, 780,999.30 and 320,975.64 is: 442,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,944.26 : 780,999.30 = 320,975.64 : x
  2. Step 2: Convert to fraction form
    565,944.26/780,999.30 = 320,975.64/x
  3. Step 3: Cross multiply
    565,944.26x = 780,999.30 × 320,975.64
  4. Step 4: Simplify right side
    565,944.26x = 250,681,750,157.05
  5. Step 5: Solve for x
    x = 250,681,750,157.05/565,944.26
  6. Step 6: Final answer
    x = 442,944.24

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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.