Home / 482,916.63-666,455.14-278,976.15

Finding the Fourth Proportional to 482,916.63, 666,455.14 and 278,976.15

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Solution

The fourth proportional to 482,916.63, 666,455.14 and 278,976.15 is: 385,004.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,916.63 : 666,455.14 = 278,976.15 : x
  2. Step 2: Convert to fraction form
    482,916.63/666,455.14 = 278,976.15/x
  3. Step 3: Cross multiply
    482,916.63x = 666,455.14 × 278,976.15
  4. Step 4: Simplify right side
    482,916.63x = 185,925,089,453.63
  5. Step 5: Solve for x
    x = 185,925,089,453.63/482,916.63
  6. Step 6: Final answer
    x = 385,004.53

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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.