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Finding the Fourth Proportional to 482,799.59, 666,219.39 and 286,532.21

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Solution

The fourth proportional to 482,799.59, 666,219.39 and 286,532.21 is: 395,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,799.59 : 666,219.39 = 286,532.21 : x
  2. Step 2: Convert to fraction form
    482,799.59/666,219.39 = 286,532.21/x
  3. Step 3: Cross multiply
    482,799.59x = 666,219.39 × 286,532.21
  4. Step 4: Simplify right side
    482,799.59x = 190,893,310,830.46
  5. Step 5: Solve for x
    x = 190,893,310,830.46/482,799.59
  6. Step 6: Final answer
    x = 395,388.31

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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.