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Finding the Fourth Proportional to 674,322.46, 930,527.67 and 387,847.33

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Solution

The fourth proportional to 674,322.46, 930,527.67 and 387,847.33 is: 535,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,322.46 : 930,527.67 = 387,847.33 : x
  2. Step 2: Convert to fraction form
    674,322.46/930,527.67 = 387,847.33/x
  3. Step 3: Cross multiply
    674,322.46x = 930,527.67 × 387,847.33
  4. Step 4: Simplify right side
    674,322.46x = 360,902,672,300.62
  5. Step 5: Solve for x
    x = 360,902,672,300.62/674,322.46
  6. Step 6: Final answer
    x = 535,207.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.