Home / 1,821,215.34-2,513,148.12-1,005,288.03

Finding the Fourth Proportional to 1,821,215.34, 2,513,148.12 and 1,005,288.03

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Solution

The fourth proportional to 1,821,215.34, 2,513,148.12 and 1,005,288.03 is: 1,387,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,215.34 : 2,513,148.12 = 1,005,288.03 : x
  2. Step 2: Convert to fraction form
    1,821,215.34/2,513,148.12 = 1,005,288.03/x
  3. Step 3: Cross multiply
    1,821,215.34x = 2,513,148.12 × 1,005,288.03
  4. Step 4: Simplify right side
    1,821,215.34x = 2,526,437,722,653.00
  5. Step 5: Solve for x
    x = 2,526,437,722,653.00/1,821,215.34
  6. Step 6: Final answer
    x = 1,387,226.25

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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.