Home / 810,229.64-1,118,021.60-447,631.85

Finding the Fourth Proportional to 810,229.64, 1,118,021.60 and 447,631.85

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Solution

The fourth proportional to 810,229.64, 1,118,021.60 and 447,631.85 is: 617,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,229.64 : 1,118,021.60 = 447,631.85 : x
  2. Step 2: Convert to fraction form
    810,229.64/1,118,021.60 = 447,631.85/x
  3. Step 3: Cross multiply
    810,229.64x = 1,118,021.60 × 447,631.85
  4. Step 4: Simplify right side
    810,229.64x = 500,462,081,062.09
  5. Step 5: Solve for x
    x = 500,462,081,062.09/810,229.64
  6. Step 6: Final answer
    x = 617,679.31

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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.