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Finding the Fourth Proportional to 655,982.72, 905,302.44 and 365,612.72

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Solution

The fourth proportional to 655,982.72, 905,302.44 and 365,612.72 is: 504,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,982.72 : 905,302.44 = 365,612.72 : x
  2. Step 2: Convert to fraction form
    655,982.72/905,302.44 = 365,612.72/x
  3. Step 3: Cross multiply
    655,982.72x = 905,302.44 × 365,612.72
  4. Step 4: Simplify right side
    655,982.72x = 330,990,087,511.04
  5. Step 5: Solve for x
    x = 330,990,087,511.04/655,982.72
  6. Step 6: Final answer
    x = 504,571.35

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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.