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Finding the Fourth Proportional to 634,766.53, 875,993.93 and 348,286.54

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Solution

The fourth proportional to 634,766.53, 875,993.93 and 348,286.54 is: 480,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,766.53 : 875,993.93 = 348,286.54 : x
  2. Step 2: Convert to fraction form
    634,766.53/875,993.93 = 348,286.54/x
  3. Step 3: Cross multiply
    634,766.53x = 875,993.93 × 348,286.54
  4. Step 4: Simplify right side
    634,766.53x = 305,096,894,940.70
  5. Step 5: Solve for x
    x = 305,096,894,940.70/634,766.53
  6. Step 6: Final answer
    x = 480,644.27

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1.5x scale

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.