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Finding the Fourth Proportional to 450,990.60, 622,342.86 and 247,030.98

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Solution

The fourth proportional to 450,990.60, 622,342.86 and 247,030.98 is: 340,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,990.60 : 622,342.86 = 247,030.98 : x
  2. Step 2: Convert to fraction form
    450,990.60/622,342.86 = 247,030.98/x
  3. Step 3: Cross multiply
    450,990.60x = 622,342.86 × 247,030.98
  4. Step 4: Simplify right side
    450,990.60x = 153,737,966,601.80
  5. Step 5: Solve for x
    x = 153,737,966,601.80/450,990.60
  6. Step 6: Final answer
    x = 340,889.51

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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.