Home / 738,960.64-1,019,764.83-399,429.16

Finding the Fourth Proportional to 738,960.64, 1,019,764.83 and 399,429.16

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Solution

The fourth proportional to 738,960.64, 1,019,764.83 and 399,429.16 is: 551,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,960.64 : 1,019,764.83 = 399,429.16 : x
  2. Step 2: Convert to fraction form
    738,960.64/1,019,764.83 = 399,429.16/x
  3. Step 3: Cross multiply
    738,960.64x = 1,019,764.83 × 399,429.16
  4. Step 4: Simplify right side
    738,960.64x = 407,323,809,444.44
  5. Step 5: Solve for x
    x = 407,323,809,444.44/738,960.64
  6. Step 6: Final answer
    x = 551,211.78

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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.