Home / 806,087.40-1,111,645.44-500,213.40

Finding the Fourth Proportional to 806,087.40, 1,111,645.44 and 500,213.40

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Solution

The fourth proportional to 806,087.40, 1,111,645.44 and 500,213.40 is: 689,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,087.40 : 1,111,645.44 = 500,213.40 : x
  2. Step 2: Convert to fraction form
    806,087.40/1,111,645.44 = 500,213.40/x
  3. Step 3: Cross multiply
    806,087.40x = 1,111,645.44 × 500,213.40
  4. Step 4: Simplify right side
    806,087.40x = 556,059,945,136.90
  5. Step 5: Solve for x
    x = 556,059,945,136.90/806,087.40
  6. Step 6: Final answer
    x = 689,825.87

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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.