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Finding the Fourth Proportional to 603,377.39, 905,054.22 and 243,538.70

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Solution

The fourth proportional to 603,377.39, 905,054.22 and 243,538.70 is: 365,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,377.39 : 905,054.22 = 243,538.70 : x
  2. Step 2: Convert to fraction form
    603,377.39/905,054.22 = 243,538.70/x
  3. Step 3: Cross multiply
    603,377.39x = 905,054.22 × 243,538.70
  4. Step 4: Simplify right side
    603,377.39x = 220,415,723,643.04
  5. Step 5: Solve for x
    x = 220,415,723,643.04/603,377.39
  6. Step 6: Final answer
    x = 365,303.25

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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.