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Finding the Fourth Proportional to 450,326, 621,452.31 and 246,379.34

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Solution

The fourth proportional to 450,326, 621,452.31 and 246,379.34 is: 340,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,326 : 621,452.31 = 246,379.34 : x
  2. Step 2: Convert to fraction form
    450,326/621,452.31 = 246,379.34/x
  3. Step 3: Cross multiply
    450,326x = 621,452.31 × 246,379.34
  4. Step 4: Simplify right side
    450,326x = 153,113,009,979.28
  5. Step 5: Solve for x
    x = 153,113,009,979.28/450,326
  6. Step 6: Final answer
    x = 340,004.82

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1.5x scale

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.