Home / 809,742.16-1,117,431.48-447,157

Finding the Fourth Proportional to 809,742.16, 1,117,431.48 and 447,157

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Solution

The fourth proportional to 809,742.16, 1,117,431.48 and 447,157 is: 617,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,742.16 : 1,117,431.48 = 447,157 : x
  2. Step 2: Convert to fraction form
    809,742.16/1,117,431.48 = 447,157/x
  3. Step 3: Cross multiply
    809,742.16x = 1,117,431.48 × 447,157
  4. Step 4: Simplify right side
    809,742.16x = 499,667,308,302.36
  5. Step 5: Solve for x
    x = 499,667,308,302.36/809,742.16
  6. Step 6: Final answer
    x = 617,069.65

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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.