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Finding the Fourth Proportional to 376,988.67, 519,759.32 and 308,754.27

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Solution

The fourth proportional to 376,988.67, 519,759.32 and 308,754.27 is: 425,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,988.67 : 519,759.32 = 308,754.27 : x
  2. Step 2: Convert to fraction form
    376,988.67/519,759.32 = 308,754.27/x
  3. Step 3: Cross multiply
    376,988.67x = 519,759.32 × 308,754.27
  4. Step 4: Simplify right side
    376,988.67x = 160,477,907,878.53
  5. Step 5: Solve for x
    x = 160,477,907,878.53/376,988.67
  6. Step 6: Final answer
    x = 425,683.64

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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.