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Finding the Fourth Proportional to 634,136.38, 875,107.98 and 347,650.32

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Solution

The fourth proportional to 634,136.38, 875,107.98 and 347,650.32 is: 479,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,136.38 : 875,107.98 = 347,650.32 : x
  2. Step 2: Convert to fraction form
    634,136.38/875,107.98 = 347,650.32/x
  3. Step 3: Cross multiply
    634,136.38x = 875,107.98 × 347,650.32
  4. Step 4: Simplify right side
    634,136.38x = 304,231,569,281.55
  5. Step 5: Solve for x
    x = 304,231,569,281.55/634,136.38
  6. Step 6: Final answer
    x = 479,757.32

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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.