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Finding the Fourth Proportional to 538,476.17, 743,287.39 and 481,015.65

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Solution

The fourth proportional to 538,476.17, 743,287.39 and 481,015.65 is: 663,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,476.17 : 743,287.39 = 481,015.65 : x
  2. Step 2: Convert to fraction form
    538,476.17/743,287.39 = 481,015.65/x
  3. Step 3: Cross multiply
    538,476.17x = 743,287.39 × 481,015.65
  4. Step 4: Simplify right side
    538,476.17x = 357,532,867,037.65
  5. Step 5: Solve for x
    x = 357,532,867,037.65/538,476.17
  6. Step 6: Final answer
    x = 663,971.57

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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.