Home / 565,921.74-780,741.60-320,854.86

Finding the Fourth Proportional to 565,921.74, 780,741.60 and 320,854.86

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Solution

The fourth proportional to 565,921.74, 780,741.60 and 320,854.86 is: 442,649.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,921.74 : 780,741.60 = 320,854.86 : x
  2. Step 2: Convert to fraction form
    565,921.74/780,741.60 = 320,854.86/x
  3. Step 3: Cross multiply
    565,921.74x = 780,741.60 × 320,854.86
  4. Step 4: Simplify right side
    565,921.74x = 250,504,736,764.18
  5. Step 5: Solve for x
    x = 250,504,736,764.18/565,921.74
  6. Step 6: Final answer
    x = 442,649.08

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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.