Home / 1,433,830.07-1,978,453.97-821,870.22

Finding the Fourth Proportional to 1,433,830.07, 1,978,453.97 and 821,870.22

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Solution

The fourth proportional to 1,433,830.07, 1,978,453.97 and 821,870.22 is: 1,134,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,830.07 : 1,978,453.97 = 821,870.22 : x
  2. Step 2: Convert to fraction form
    1,433,830.07/1,978,453.97 = 821,870.22/x
  3. Step 3: Cross multiply
    1,433,830.07x = 1,978,453.97 × 821,870.22
  4. Step 4: Simplify right side
    1,433,830.07x = 1,626,032,395,474.42
  5. Step 5: Solve for x
    x = 1,626,032,395,474.42/1,433,830.07
  6. Step 6: Final answer
    x = 1,134,048.19

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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.