Home / 2,105,301-2,905,138.80-1,245,710.64

Finding the Fourth Proportional to 2,105,301, 2,905,138.80 and 1,245,710.64

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Solution

The fourth proportional to 2,105,301, 2,905,138.80 and 1,245,710.64 is: 1,718,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,301 : 2,905,138.80 = 1,245,710.64 : x
  2. Step 2: Convert to fraction form
    2,105,301/2,905,138.80 = 1,245,710.64/x
  3. Step 3: Cross multiply
    2,105,301x = 2,905,138.80 × 1,245,710.64
  4. Step 4: Simplify right side
    2,105,301x = 3,618,962,313,836.83
  5. Step 5: Solve for x
    x = 3,618,962,313,836.83/2,105,301
  6. Step 6: Final answer
    x = 1,718,976.20

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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.