Home / 3,171,242.87-4,376,318.02-1,720,938.32

Finding the Fourth Proportional to 3,171,242.87, 4,376,318.02 and 1,720,938.32

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Solution

The fourth proportional to 3,171,242.87, 4,376,318.02 and 1,720,938.32 is: 2,374,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,242.87 : 4,376,318.02 = 1,720,938.32 : x
  2. Step 2: Convert to fraction form
    3,171,242.87/4,376,318.02 = 1,720,938.32/x
  3. Step 3: Cross multiply
    3,171,242.87x = 4,376,318.02 × 1,720,938.32
  4. Step 4: Simplify right side
    3,171,242.87x = 7,531,373,381,124.53
  5. Step 5: Solve for x
    x = 7,531,373,381,124.53/3,171,242.87
  6. Step 6: Final answer
    x = 2,374,896.43

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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.