Home / 3,111,204-4,293,464.40-1,680,420

Finding the Fourth Proportional to 3,111,204, 4,293,464.40 and 1,680,420

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Solution

The fourth proportional to 3,111,204, 4,293,464.40 and 1,680,420 is: 2,318,981.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,204 : 4,293,464.40 = 1,680,420 : x
  2. Step 2: Convert to fraction form
    3,111,204/4,293,464.40 = 1,680,420/x
  3. Step 3: Cross multiply
    3,111,204x = 4,293,464.40 × 1,680,420
  4. Step 4: Simplify right side
    3,111,204x = 7,214,823,447,048.00
  5. Step 5: Solve for x
    x = 7,214,823,447,048.00/3,111,204
  6. Step 6: Final answer
    x = 2,318,981.16

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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.