Home / 1,621,064.81-2,238,101.16-1,010,115.12

Finding the Fourth Proportional to 1,621,064.81, 2,238,101.16 and 1,010,115.12

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Solution

The fourth proportional to 1,621,064.81, 2,238,101.16 and 1,010,115.12 is: 1,394,601.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,064.81 : 2,238,101.16 = 1,010,115.12 : x
  2. Step 2: Convert to fraction form
    1,621,064.81/2,238,101.16 = 1,010,115.12/x
  3. Step 3: Cross multiply
    1,621,064.81x = 2,238,101.16 × 1,010,115.12
  4. Step 4: Simplify right side
    1,621,064.81x = 2,260,739,821,805.54
  5. Step 5: Solve for x
    x = 2,260,739,821,805.54/1,621,064.81
  6. Step 6: Final answer
    x = 1,394,601.75

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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.