Home / 1,421,010.40-2,131,208.40-622,290.40

Finding the Fourth Proportional to 1,421,010.40, 2,131,208.40 and 622,290.40

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Solution

The fourth proportional to 1,421,010.40, 2,131,208.40 and 622,290.40 is: 933,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,010.40 : 2,131,208.40 = 622,290.40 : x
  2. Step 2: Convert to fraction form
    1,421,010.40/2,131,208.40 = 622,290.40/x
  3. Step 3: Cross multiply
    1,421,010.40x = 2,131,208.40 × 622,290.40
  4. Step 4: Simplify right side
    1,421,010.40x = 1,326,230,527,719.36
  5. Step 5: Solve for x
    x = 1,326,230,527,719.36/1,421,010.40
  6. Step 6: Final answer
    x = 933,301.07

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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.