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Finding the Fourth Proportional to 451,224.85, 622,973.43 and 290,359.45

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Solution

The fourth proportional to 451,224.85, 622,973.43 and 290,359.45 is: 400,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,224.85 : 622,973.43 = 290,359.45 : x
  2. Step 2: Convert to fraction form
    451,224.85/622,973.43 = 290,359.45/x
  3. Step 3: Cross multiply
    451,224.85x = 622,973.43 × 290,359.45
  4. Step 4: Simplify right side
    451,224.85x = 180,886,222,499.41
  5. Step 5: Solve for x
    x = 180,886,222,499.41/451,224.85
  6. Step 6: Final answer
    x = 400,878.24

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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.