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Finding the Fourth Proportional to 644,280.33, 965,993.93 and 307,372.98

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Solution

The fourth proportional to 644,280.33, 965,993.93 and 307,372.98 is: 460,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,280.33 : 965,993.93 = 307,372.98 : x
  2. Step 2: Convert to fraction form
    644,280.33/965,993.93 = 307,372.98/x
  3. Step 3: Cross multiply
    644,280.33x = 965,993.93 × 307,372.98
  4. Step 4: Simplify right side
    644,280.33x = 296,920,432,926.01
  5. Step 5: Solve for x
    x = 296,920,432,926.01/644,280.33
  6. Step 6: Final answer
    x = 460,855.96

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Double scale
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Similar ratio
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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.