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Finding the Fourth Proportional to 429,439.24, 641,266.98 and 350,709.64

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Solution

The fourth proportional to 429,439.24, 641,266.98 and 350,709.64 is: 523,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,439.24 : 641,266.98 = 350,709.64 : x
  2. Step 2: Convert to fraction form
    429,439.24/641,266.98 = 350,709.64/x
  3. Step 3: Cross multiply
    429,439.24x = 641,266.98 × 350,709.64
  4. Step 4: Simplify right side
    429,439.24x = 224,898,511,699.69
  5. Step 5: Solve for x
    x = 224,898,511,699.69/429,439.24
  6. Step 6: Final answer
    x = 523,702.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.