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Finding the Fourth Proportional to 658,374.60, 987,270.30 and 303,205.80

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Solution

The fourth proportional to 658,374.60, 987,270.30 and 303,205.80 is: 454,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,374.60 : 987,270.30 = 303,205.80 : x
  2. Step 2: Convert to fraction form
    658,374.60/987,270.30 = 303,205.80/x
  3. Step 3: Cross multiply
    658,374.60x = 987,270.30 × 303,205.80
  4. Step 4: Simplify right side
    658,374.60x = 299,346,081,127.74
  5. Step 5: Solve for x
    x = 299,346,081,127.74/658,374.60
  6. Step 6: Final answer
    x = 454,674.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.