Home / 901,284.54-1,242,447.57-686,049.72

Finding the Fourth Proportional to 901,284.54, 1,242,447.57 and 686,049.72

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Solution

The fourth proportional to 901,284.54, 1,242,447.57 and 686,049.72 is: 945,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,284.54 : 1,242,447.57 = 686,049.72 : x
  2. Step 2: Convert to fraction form
    901,284.54/1,242,447.57 = 686,049.72/x
  3. Step 3: Cross multiply
    901,284.54x = 1,242,447.57 × 686,049.72
  4. Step 4: Simplify right side
    901,284.54x = 852,380,807,513.18
  5. Step 5: Solve for x
    x = 852,380,807,513.18/901,284.54
  6. Step 6: Final answer
    x = 945,739.96

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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.