Home / 406,182.21-609,148.57-280,629.26

Finding the Fourth Proportional to 406,182.21, 609,148.57 and 280,629.26

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Solution

The fourth proportional to 406,182.21, 609,148.57 and 280,629.26 is: 420,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,182.21 : 609,148.57 = 280,629.26 : x
  2. Step 2: Convert to fraction form
    406,182.21/609,148.57 = 280,629.26/x
  3. Step 3: Cross multiply
    406,182.21x = 609,148.57 × 280,629.26
  4. Step 4: Simplify right side
    406,182.21x = 170,944,912,429.16
  5. Step 5: Solve for x
    x = 170,944,912,429.16/406,182.21
  6. Step 6: Final answer
    x = 420,857.70

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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.