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Finding the Fourth Proportional to 482,673.36, 666,084.96 and 278,767.20

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Solution

The fourth proportional to 482,673.36, 666,084.96 and 278,767.20 is: 384,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,673.36 : 666,084.96 = 278,767.20 : x
  2. Step 2: Convert to fraction form
    482,673.36/666,084.96 = 278,767.20/x
  3. Step 3: Cross multiply
    482,673.36x = 666,084.96 × 278,767.20
  4. Step 4: Simplify right side
    482,673.36x = 185,682,639,261.31
  5. Step 5: Solve for x
    x = 185,682,639,261.31/482,673.36
  6. Step 6: Final answer
    x = 384,696.27

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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.