Home / 862,588.20-1,190,376.59-500,227.21

Finding the Fourth Proportional to 862,588.20, 1,190,376.59 and 500,227.21

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Solution

The fourth proportional to 862,588.20, 1,190,376.59 and 500,227.21 is: 690,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,588.20 : 1,190,376.59 = 500,227.21 : x
  2. Step 2: Convert to fraction form
    862,588.20/1,190,376.59 = 500,227.21/x
  3. Step 3: Cross multiply
    862,588.20x = 1,190,376.59 × 500,227.21
  4. Step 4: Simplify right side
    862,588.20x = 595,458,754,513.13
  5. Step 5: Solve for x
    x = 595,458,754,513.13/862,588.20
  6. Step 6: Final answer
    x = 690,316.37

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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.