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Finding the Fourth Proportional to 610,665.44, 842,731.82 and 338,724.48

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Solution

The fourth proportional to 610,665.44, 842,731.82 and 338,724.48 is: 467,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,665.44 : 842,731.82 = 338,724.48 : x
  2. Step 2: Convert to fraction form
    610,665.44/842,731.82 = 338,724.48/x
  3. Step 3: Cross multiply
    610,665.44x = 842,731.82 × 338,724.48
  4. Step 4: Simplify right side
    610,665.44x = 285,453,898,355.77
  5. Step 5: Solve for x
    x = 285,453,898,355.77/610,665.44
  6. Step 6: Final answer
    x = 467,447.28

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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.