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Finding the Fourth Proportional to 523,351.82, 722,139.14 and 308,533.44

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Solution

The fourth proportional to 523,351.82, 722,139.14 and 308,533.44 is: 425,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,351.82 : 722,139.14 = 308,533.44 : x
  2. Step 2: Convert to fraction form
    523,351.82/722,139.14 = 308,533.44/x
  3. Step 3: Cross multiply
    523,351.82x = 722,139.14 × 308,533.44
  4. Step 4: Simplify right side
    523,351.82x = 222,804,071,480.17
  5. Step 5: Solve for x
    x = 222,804,071,480.17/523,351.82
  6. Step 6: Final answer
    x = 425,725.23

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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.