Home / 482,589.63-666,032.75-278,640.21

Finding the Fourth Proportional to 482,589.63, 666,032.75 and 278,640.21

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Solution

The fourth proportional to 482,589.63, 666,032.75 and 278,640.21 is: 384,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,589.63 : 666,032.75 = 278,640.21 : x
  2. Step 2: Convert to fraction form
    482,589.63/666,032.75 = 278,640.21/x
  3. Step 3: Cross multiply
    482,589.63x = 666,032.75 × 278,640.21
  4. Step 4: Simplify right side
    482,589.63x = 185,583,503,933.68
  5. Step 5: Solve for x
    x = 185,583,503,933.68/482,589.63
  6. Step 6: Final answer
    x = 384,557.59

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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.