Home / 389,913.08-584,890.94-123,654.32

Finding the Fourth Proportional to 389,913.08, 584,890.94 and 123,654.32

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Solution

The fourth proportional to 389,913.08, 584,890.94 and 123,654.32 is: 185,488.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,913.08 : 584,890.94 = 123,654.32 : x
  2. Step 2: Convert to fraction form
    389,913.08/584,890.94 = 123,654.32/x
  3. Step 3: Cross multiply
    389,913.08x = 584,890.94 × 123,654.32
  4. Step 4: Simplify right side
    389,913.08x = 72,324,291,459.86
  5. Step 5: Solve for x
    x = 72,324,291,459.86/389,913.08
  6. Step 6: Final answer
    x = 185,488.24

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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.