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Finding the Fourth Proportional to 634,163.82, 875,144.90 and 347,702.46

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Solution

The fourth proportional to 634,163.82, 875,144.90 and 347,702.46 is: 479,828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,163.82 : 875,144.90 = 347,702.46 : x
  2. Step 2: Convert to fraction form
    634,163.82/875,144.90 = 347,702.46/x
  3. Step 3: Cross multiply
    634,163.82x = 875,144.90 × 347,702.46
  4. Step 4: Simplify right side
    634,163.82x = 304,290,034,586.45
  5. Step 5: Solve for x
    x = 304,290,034,586.45/634,163.82
  6. Step 6: Final answer
    x = 479,828.75

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Double scale
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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.