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Finding the Fourth Proportional to 603,704.13, 905,971.40 and 248,718.15

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Solution

The fourth proportional to 603,704.13, 905,971.40 and 248,718.15 is: 373,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,704.13 : 905,971.40 = 248,718.15 : x
  2. Step 2: Convert to fraction form
    603,704.13/905,971.40 = 248,718.15/x
  3. Step 3: Cross multiply
    603,704.13x = 905,971.40 × 248,718.15
  4. Step 4: Simplify right side
    603,704.13x = 225,331,529,317.32
  5. Step 5: Solve for x
    x = 225,331,529,317.32/603,704.13
  6. Step 6: Final answer
    x = 373,248.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.