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Finding the Fourth Proportional to 482,786, 666,259.83 and 278,833.13

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Solution

The fourth proportional to 482,786, 666,259.83 and 278,833.13 is: 384,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,786 : 666,259.83 = 278,833.13 : x
  2. Step 2: Convert to fraction form
    482,786/666,259.83 = 278,833.13/x
  3. Step 3: Cross multiply
    482,786x = 666,259.83 × 278,833.13
  4. Step 4: Simplify right side
    482,786x = 185,775,313,792.17
  5. Step 5: Solve for x
    x = 185,775,313,792.17/482,786
  6. Step 6: Final answer
    x = 384,798.47

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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.