Home / 389,928.51-584,892.73-212,584.65

Finding the Fourth Proportional to 389,928.51, 584,892.73 and 212,584.65

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Solution

The fourth proportional to 389,928.51, 584,892.73 and 212,584.65 is: 318,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,928.51 : 584,892.73 = 212,584.65 : x
  2. Step 2: Convert to fraction form
    389,928.51/584,892.73 = 212,584.65/x
  3. Step 3: Cross multiply
    389,928.51x = 584,892.73 × 212,584.65
  4. Step 4: Simplify right side
    389,928.51x = 124,339,216,294.60
  5. Step 5: Solve for x
    x = 124,339,216,294.60/389,928.51
  6. Step 6: Final answer
    x = 318,876.96

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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.