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Finding the Fourth Proportional to 325,757.90, 486,408.70 and 291,804.73

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Solution

The fourth proportional to 325,757.90, 486,408.70 and 291,804.73 is: 435,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,757.90 : 486,408.70 = 291,804.73 : x
  2. Step 2: Convert to fraction form
    325,757.90/486,408.70 = 291,804.73/x
  3. Step 3: Cross multiply
    325,757.90x = 486,408.70 × 291,804.73
  4. Step 4: Simplify right side
    325,757.90x = 141,936,356,880.48
  5. Step 5: Solve for x
    x = 141,936,356,880.48/325,757.90
  6. Step 6: Final answer
    x = 435,711.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.