Home / 646,942.56-892,784.39-375,171.81

Finding the Fourth Proportional to 646,942.56, 892,784.39 and 375,171.81

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Solution

The fourth proportional to 646,942.56, 892,784.39 and 375,171.81 is: 517,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,942.56 : 892,784.39 = 375,171.81 : x
  2. Step 2: Convert to fraction form
    646,942.56/892,784.39 = 375,171.81/x
  3. Step 3: Cross multiply
    646,942.56x = 892,784.39 × 375,171.81
  4. Step 4: Simplify right side
    646,942.56x = 334,947,533,660.19
  5. Step 5: Solve for x
    x = 334,947,533,660.19/646,942.56
  6. Step 6: Final answer
    x = 517,739.22

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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.