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Finding the Fourth Proportional to 400,779, 600,643.62 and 223,369.56

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Solution

The fourth proportional to 400,779, 600,643.62 and 223,369.56 is: 334,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,779 : 600,643.62 = 223,369.56 : x
  2. Step 2: Convert to fraction form
    400,779/600,643.62 = 223,369.56/x
  3. Step 3: Cross multiply
    400,779x = 600,643.62 × 223,369.56
  4. Step 4: Simplify right side
    400,779x = 134,165,501,116.21
  5. Step 5: Solve for x
    x = 134,165,501,116.21/400,779
  6. Step 6: Final answer
    x = 334,761.80

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1.5x scale

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.