Home / 810,243.21-1,118,147.37-447,675.42

Finding the Fourth Proportional to 810,243.21, 1,118,147.37 and 447,675.42

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Solution

The fourth proportional to 810,243.21, 1,118,147.37 and 447,675.42 is: 617,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,243.21 : 1,118,147.37 = 447,675.42 : x
  2. Step 2: Convert to fraction form
    810,243.21/1,118,147.37 = 447,675.42/x
  3. Step 3: Cross multiply
    810,243.21x = 1,118,147.37 × 447,675.42
  4. Step 4: Simplify right side
    810,243.21x = 500,567,093,486.65
  5. Step 5: Solve for x
    x = 500,567,093,486.65/810,243.21
  6. Step 6: Final answer
    x = 617,798.57

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Double scale
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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.