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Finding the Fourth Proportional to 603,412.03, 905,104.02 and 303,812.17

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Solution

The fourth proportional to 603,412.03, 905,104.02 and 303,812.17 is: 455,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,412.03 : 905,104.02 = 303,812.17 : x
  2. Step 2: Convert to fraction form
    603,412.03/905,104.02 = 303,812.17/x
  3. Step 3: Cross multiply
    603,412.03x = 905,104.02 × 303,812.17
  4. Step 4: Simplify right side
    603,412.03x = 274,981,615,268.46
  5. Step 5: Solve for x
    x = 274,981,615,268.46/603,412.03
  6. Step 6: Final answer
    x = 455,711.19

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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.