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Finding the Fourth Proportional to 654,724.60, 903,511 and 368,244.56

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Solution

The fourth proportional to 654,724.60, 903,511 and 368,244.56 is: 508,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,724.60 : 903,511 = 368,244.56 : x
  2. Step 2: Convert to fraction form
    654,724.60/903,511 = 368,244.56/x
  3. Step 3: Cross multiply
    654,724.60x = 903,511 × 368,244.56
  4. Step 4: Simplify right side
    654,724.60x = 332,713,010,650.16
  5. Step 5: Solve for x
    x = 332,713,010,650.16/654,724.60
  6. Step 6: Final answer
    x = 508,172.46

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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.