Home / 1,116,785.56-1,670,951.04-661,621.19

Finding the Fourth Proportional to 1,116,785.56, 1,670,951.04 and 661,621.19

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Solution

The fourth proportional to 1,116,785.56, 1,670,951.04 and 661,621.19 is: 989,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,785.56 : 1,670,951.04 = 661,621.19 : x
  2. Step 2: Convert to fraction form
    1,116,785.56/1,670,951.04 = 661,621.19/x
  3. Step 3: Cross multiply
    1,116,785.56x = 1,670,951.04 × 661,621.19
  4. Step 4: Simplify right side
    1,116,785.56x = 1,105,536,615,516.54
  5. Step 5: Solve for x
    x = 1,105,536,615,516.54/1,116,785.56
  6. Step 6: Final answer
    x = 989,927.39

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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.