Home / 1,977,207.78-2,728,417.91-1,105,891.49

Finding the Fourth Proportional to 1,977,207.78, 2,728,417.91 and 1,105,891.49

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Solution

The fourth proportional to 1,977,207.78, 2,728,417.91 and 1,105,891.49 is: 1,526,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,207.78 : 2,728,417.91 = 1,105,891.49 : x
  2. Step 2: Convert to fraction form
    1,977,207.78/2,728,417.91 = 1,105,891.49/x
  3. Step 3: Cross multiply
    1,977,207.78x = 2,728,417.91 × 1,105,891.49
  4. Step 4: Simplify right side
    1,977,207.78x = 3,017,334,142,303.13
  5. Step 5: Solve for x
    x = 3,017,334,142,303.13/1,977,207.78
  6. Step 6: Final answer
    x = 1,526,058.20

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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.