Home / 389,729.42-584,631.41-109,245.86

Finding the Fourth Proportional to 389,729.42, 584,631.41 and 109,245.86

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Solution

The fourth proportional to 389,729.42, 584,631.41 and 109,245.86 is: 163,879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,729.42 : 584,631.41 = 109,245.86 : x
  2. Step 2: Convert to fraction form
    389,729.42/584,631.41 = 109,245.86/x
  3. Step 3: Cross multiply
    389,729.42x = 584,631.41 × 109,245.86
  4. Step 4: Simplify right side
    389,729.42x = 63,868,557,699.08
  5. Step 5: Solve for x
    x = 63,868,557,699.08/389,729.42
  6. Step 6: Final answer
    x = 163,879.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.