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Finding the Fourth Proportional to 658,383.60, 987,903.45 and 374,292.30

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Solution

The fourth proportional to 658,383.60, 987,903.45 and 374,292.30 is: 561,624.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,383.60 : 987,903.45 = 374,292.30 : x
  2. Step 2: Convert to fraction form
    658,383.60/987,903.45 = 374,292.30/x
  3. Step 3: Cross multiply
    658,383.60x = 987,903.45 × 374,292.30
  4. Step 4: Simplify right side
    658,383.60x = 369,764,654,478.44
  5. Step 5: Solve for x
    x = 369,764,654,478.44/658,383.60
  6. Step 6: Final answer
    x = 561,624.95

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1.5x scale

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.