Home / 1,821,675.30-2,728,138.95-978,368.10

Finding the Fourth Proportional to 1,821,675.30, 2,728,138.95 and 978,368.10

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Solution

The fourth proportional to 1,821,675.30, 2,728,138.95 and 978,368.10 is: 1,465,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,675.30 : 2,728,138.95 = 978,368.10 : x
  2. Step 2: Convert to fraction form
    1,821,675.30/2,728,138.95 = 978,368.10/x
  3. Step 3: Cross multiply
    1,821,675.30x = 2,728,138.95 × 978,368.10
  4. Step 4: Simplify right side
    1,821,675.30x = 2,669,124,121,047.50
  5. Step 5: Solve for x
    x = 2,669,124,121,047.50/1,821,675.30
  6. Step 6: Final answer
    x = 1,465,203.00

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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.