Home / 414,075.36-621,113.22-129,788.07

Finding the Fourth Proportional to 414,075.36, 621,113.22 and 129,788.07

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Solution

The fourth proportional to 414,075.36, 621,113.22 and 129,788.07 is: 194,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,075.36 : 621,113.22 = 129,788.07 : x
  2. Step 2: Convert to fraction form
    414,075.36/621,113.22 = 129,788.07/x
  3. Step 3: Cross multiply
    414,075.36x = 621,113.22 × 129,788.07
  4. Step 4: Simplify right side
    414,075.36x = 80,613,086,075.29
  5. Step 5: Solve for x
    x = 80,613,086,075.29/414,075.36
  6. Step 6: Final answer
    x = 194,682.16

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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.