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Finding the Fourth Proportional to 3,398,680.63, 5,097,971.03 and 839,895.51

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Solution

The fourth proportional to 3,398,680.63, 5,097,971.03 and 839,895.51 is: 1,259,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398,680.63 : 5,097,971.03 = 839,895.51 : x
  2. Step 2: Convert to fraction form
    3,398,680.63/5,097,971.03 = 839,895.51/x
  3. Step 3: Cross multiply
    3,398,680.63x = 5,097,971.03 × 839,895.51
  4. Step 4: Simplify right side
    3,398,680.63x = 4,281,762,974,007.60
  5. Step 5: Solve for x
    x = 4,281,762,974,007.60/3,398,680.63
  6. Step 6: Final answer
    x = 1,259,830.93

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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.