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Finding the Fourth Proportional to 603,385.18, 905,063.76 and 303,785.32

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Solution

The fourth proportional to 603,385.18, 905,063.76 and 303,785.32 is: 455,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,385.18 : 905,063.76 = 303,785.32 : x
  2. Step 2: Convert to fraction form
    603,385.18/905,063.76 = 303,785.32/x
  3. Step 3: Cross multiply
    603,385.18x = 905,063.76 × 303,785.32
  4. Step 4: Simplify right side
    603,385.18x = 274,945,083,952.00
  5. Step 5: Solve for x
    x = 274,945,083,952.00/603,385.18
  6. Step 6: Final answer
    x = 455,670.93

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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.