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Finding the Fourth Proportional to 450,505.22, 621,691.62 and 246,555.32

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Solution

The fourth proportional to 450,505.22, 621,691.62 and 246,555.32 is: 340,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,505.22 : 621,691.62 = 246,555.32 : x
  2. Step 2: Convert to fraction form
    450,505.22/621,691.62 = 246,555.32/x
  3. Step 3: Cross multiply
    450,505.22x = 621,691.62 × 246,555.32
  4. Step 4: Simplify right side
    450,505.22x = 153,281,376,310.42
  5. Step 5: Solve for x
    x = 153,281,376,310.42/450,505.22
  6. Step 6: Final answer
    x = 340,243.29

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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.