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Finding the Fourth Proportional to 438,290.73, 604,807.97 and 247,321.89

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Solution

The fourth proportional to 438,290.73, 604,807.97 and 247,321.89 is: 341,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,290.73 : 604,807.97 = 247,321.89 : x
  2. Step 2: Convert to fraction form
    438,290.73/604,807.97 = 247,321.89/x
  3. Step 3: Cross multiply
    438,290.73x = 604,807.97 × 247,321.89
  4. Step 4: Simplify right side
    438,290.73x = 149,582,248,990.85
  5. Step 5: Solve for x
    x = 149,582,248,990.85/438,290.73
  6. Step 6: Final answer
    x = 341,285.45

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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.