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Finding the Fourth Proportional to 603,377.64, 905,054.59 and 243,538.94

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Solution

The fourth proportional to 603,377.64, 905,054.59 and 243,538.94 is: 365,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,377.64 : 905,054.59 = 243,538.94 : x
  2. Step 2: Convert to fraction form
    603,377.64/905,054.59 = 243,538.94/x
  3. Step 3: Cross multiply
    603,377.64x = 905,054.59 × 243,538.94
  4. Step 4: Simplify right side
    603,377.64x = 220,416,035,490.74
  5. Step 5: Solve for x
    x = 220,416,035,490.74/603,377.64
  6. Step 6: Final answer
    x = 365,303.62

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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.