Home / 2,105,291-2,905,125-1,245,700.64

Finding the Fourth Proportional to 2,105,291, 2,905,125 and 1,245,700.64

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Solution

The fourth proportional to 2,105,291, 2,905,125 and 1,245,700.64 is: 1,718,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,291 : 2,905,125 = 1,245,700.64 : x
  2. Step 2: Convert to fraction form
    2,105,291/2,905,125 = 1,245,700.64/x
  3. Step 3: Cross multiply
    2,105,291x = 2,905,125 × 1,245,700.64
  4. Step 4: Simplify right side
    2,105,291x = 3,618,916,071,780.00
  5. Step 5: Solve for x
    x = 3,618,916,071,780.00/2,105,291
  6. Step 6: Final answer
    x = 1,718,962.40

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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.