Home / 751,012.90-1,036,393.58-406,855.44

Finding the Fourth Proportional to 751,012.90, 1,036,393.58 and 406,855.44

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Solution

The fourth proportional to 751,012.90, 1,036,393.58 and 406,855.44 is: 561,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,012.90 : 1,036,393.58 = 406,855.44 : x
  2. Step 2: Convert to fraction form
    751,012.90/1,036,393.58 = 406,855.44/x
  3. Step 3: Cross multiply
    751,012.90x = 1,036,393.58 × 406,855.44
  4. Step 4: Simplify right side
    751,012.90x = 421,662,367,021.21
  5. Step 5: Solve for x
    x = 421,662,367,021.21/751,012.90
  6. Step 6: Final answer
    x = 561,458.22

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1.5x scale

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.