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Finding the Fourth Proportional to 774,469.76, 1,161,063.12 and 294,597.68

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Solution

The fourth proportional to 774,469.76, 1,161,063.12 and 294,597.68 is: 441,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,469.76 : 1,161,063.12 = 294,597.68 : x
  2. Step 2: Convert to fraction form
    774,469.76/1,161,063.12 = 294,597.68/x
  3. Step 3: Cross multiply
    774,469.76x = 1,161,063.12 × 294,597.68
  4. Step 4: Simplify right side
    774,469.76x = 342,046,501,485.56
  5. Step 5: Solve for x
    x = 342,046,501,485.56/774,469.76
  6. Step 6: Final answer
    x = 441,652.49

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Double scale
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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.