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Finding the Fourth Proportional to 603,673.42, 905,348.13 and 287,501.26

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Solution

The fourth proportional to 603,673.42, 905,348.13 and 287,501.26 is: 431,174.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,673.42 : 905,348.13 = 287,501.26 : x
  2. Step 2: Convert to fraction form
    603,673.42/905,348.13 = 287,501.26/x
  3. Step 3: Cross multiply
    603,673.42x = 905,348.13 × 287,501.26
  4. Step 4: Simplify right side
    603,673.42x = 260,288,728,113.64
  5. Step 5: Solve for x
    x = 260,288,728,113.64/603,673.42
  6. Step 6: Final answer
    x = 431,174.74

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Double scale
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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.