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Finding the Third Proportional to 291,840 and 450,706.50

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Solution

The third proportional to 291,840 and 450,706.50 is: 696,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,840 : 450,706.50 = 450,706.50 : x
  2. Step 2: Convert to fraction form
    291,840/450,706.50 = 450,706.50/x
  3. Step 3: Cross multiply
    291,840x = 450,706.50 × 450,706.50
  4. Step 4: Simplify right side
    291,840x = 203,136,349,142.25
  5. Step 5: Solve for x
    x = 203,136,349,142.25/291,840
  6. Step 6: Final answer
    x = 696,053.83

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.