Home / 1,919,721-2,880,055.13-571,878.37

Finding the Fourth Proportional to 1,919,721, 2,880,055.13 and 571,878.37

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Solution

The fourth proportional to 1,919,721, 2,880,055.13 and 571,878.37 is: 857,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,721 : 2,880,055.13 = 571,878.37 : x
  2. Step 2: Convert to fraction form
    1,919,721/2,880,055.13 = 571,878.37/x
  3. Step 3: Cross multiply
    1,919,721x = 2,880,055.13 × 571,878.37
  4. Step 4: Simplify right side
    1,919,721x = 1,647,041,227,484.10
  5. Step 5: Solve for x
    x = 1,647,041,227,484.10/1,919,721
  6. Step 6: Final answer
    x = 857,958.64

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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.