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Finding the Fourth Proportional to 872,336.50, 1,308,503.12 and 273,343.54

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Solution

The fourth proportional to 872,336.50, 1,308,503.12 and 273,343.54 is: 410,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,336.50 : 1,308,503.12 = 273,343.54 : x
  2. Step 2: Convert to fraction form
    872,336.50/1,308,503.12 = 273,343.54/x
  3. Step 3: Cross multiply
    872,336.50x = 1,308,503.12 × 273,343.54
  4. Step 4: Simplify right side
    872,336.50x = 357,670,867,012.61
  5. Step 5: Solve for x
    x = 357,670,867,012.61/872,336.50
  6. Step 6: Final answer
    x = 410,014.79

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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.