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Finding the Fourth Proportional to 425,361.77, 587,040.61 and 317,744.97

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Solution

The fourth proportional to 425,361.77, 587,040.61 and 317,744.97 is: 438,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,361.77 : 587,040.61 = 317,744.97 : x
  2. Step 2: Convert to fraction form
    425,361.77/587,040.61 = 317,744.97/x
  3. Step 3: Cross multiply
    425,361.77x = 587,040.61 × 317,744.97
  4. Step 4: Simplify right side
    425,361.77x = 186,529,201,013.23
  5. Step 5: Solve for x
    x = 186,529,201,013.23/425,361.77
  6. Step 6: Final answer
    x = 438,518.96

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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.