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Finding the Fourth Proportional to 707,452.89, 976,285.12 and 385,163.00

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Solution

The fourth proportional to 707,452.89, 976,285.12 and 385,163.00 is: 531,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,452.89 : 976,285.12 = 385,163.00 : x
  2. Step 2: Convert to fraction form
    707,452.89/976,285.12 = 385,163.00/x
  3. Step 3: Cross multiply
    707,452.89x = 976,285.12 × 385,163.00
  4. Step 4: Simplify right side
    707,452.89x = 376,028,904,213.48
  5. Step 5: Solve for x
    x = 376,028,904,213.48/707,452.89
  6. Step 6: Final answer
    x = 531,525.01

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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.