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Finding the Fourth Proportional to 603,862.28, 905,941.73 and 300,399.63

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Solution

The fourth proportional to 603,862.28, 905,941.73 and 300,399.63 is: 450,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,862.28 : 905,941.73 = 300,399.63 : x
  2. Step 2: Convert to fraction form
    603,862.28/905,941.73 = 300,399.63/x
  3. Step 3: Cross multiply
    603,862.28x = 905,941.73 × 300,399.63
  4. Step 4: Simplify right side
    603,862.28x = 272,144,560,118.06
  5. Step 5: Solve for x
    x = 272,144,560,118.06/603,862.28
  6. Step 6: Final answer
    x = 450,673.22

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1.5x scale

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.