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Finding the Fourth Proportional to 538,534.76, 806,916.36 and 426,932.24

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Solution

The fourth proportional to 538,534.76, 806,916.36 and 426,932.24 is: 639,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,534.76 : 806,916.36 = 426,932.24 : x
  2. Step 2: Convert to fraction form
    538,534.76/806,916.36 = 426,932.24/x
  3. Step 3: Cross multiply
    538,534.76x = 806,916.36 × 426,932.24
  4. Step 4: Simplify right side
    538,534.76x = 344,498,609,067.45
  5. Step 5: Solve for x
    x = 344,498,609,067.45/538,534.76
  6. Step 6: Final answer
    x = 639,696.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.