Home / 489,567.29-676,033.70-306,120.24

Finding the Fourth Proportional to 489,567.29, 676,033.70 and 306,120.24

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Solution

The fourth proportional to 489,567.29, 676,033.70 and 306,120.24 is: 422,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,567.29 : 676,033.70 = 306,120.24 : x
  2. Step 2: Convert to fraction form
    489,567.29/676,033.70 = 306,120.24/x
  3. Step 3: Cross multiply
    489,567.29x = 676,033.70 × 306,120.24
  4. Step 4: Simplify right side
    489,567.29x = 206,947,596,961.49
  5. Step 5: Solve for x
    x = 206,947,596,961.49/489,567.29
  6. Step 6: Final answer
    x = 422,715.33

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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.