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Finding the Fourth Proportional to 666,383.43, 918,652.59 and 475,064.67

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Solution

The fourth proportional to 666,383.43, 918,652.59 and 475,064.67 is: 654,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,383.43 : 918,652.59 = 475,064.67 : x
  2. Step 2: Convert to fraction form
    666,383.43/918,652.59 = 475,064.67/x
  3. Step 3: Cross multiply
    666,383.43x = 918,652.59 × 475,064.67
  4. Step 4: Simplify right side
    666,383.43x = 436,419,389,513.00
  5. Step 5: Solve for x
    x = 436,419,389,513.00/666,383.43
  6. Step 6: Final answer
    x = 654,907.32

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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.