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Finding the Third Proportional to 423,419.06 and 603,600.19

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Solution

The third proportional to 423,419.06 and 603,600.19 is: 860,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,419.06 : 603,600.19 = 603,600.19 : x
  2. Step 2: Convert to fraction form
    423,419.06/603,600.19 = 603,600.19/x
  3. Step 3: Cross multiply
    423,419.06x = 603,600.19 × 603,600.19
  4. Step 4: Simplify right side
    423,419.06x = 364,333,186,350.04
  5. Step 5: Solve for x
    x = 364,333,186,350.04/423,419.06
  6. Step 6: Final answer
    x = 860,455.32

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.