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Finding the Fourth Proportional to 346,014.90, 519,759.81 and 325,790.64

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Solution

The fourth proportional to 346,014.90, 519,759.81 and 325,790.64 is: 489,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,014.90 : 519,759.81 = 325,790.64 : x
  2. Step 2: Convert to fraction form
    346,014.90/519,759.81 = 325,790.64/x
  3. Step 3: Cross multiply
    346,014.90x = 519,759.81 × 325,790.64
  4. Step 4: Simplify right side
    346,014.90x = 169,332,881,146.18
  5. Step 5: Solve for x
    x = 169,332,881,146.18/346,014.90
  6. Step 6: Final answer
    x = 489,380.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.