Finding the Fourth Proportional to 1,295,644.68, 1,787,992.38 and 722,670.12
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Solution
The fourth proportional to 1,295,644.68, 1,787,992.38 and 722,670.12 is: 997,286.28
Step by Step Solution
- Step 1: Write the proportion equation
1,295,644.68 : 1,787,992.38 = 722,670.12 : x - Step 2: Convert to fraction form
1,295,644.68/1,787,992.38 = 722,670.12/x - Step 3: Cross multiply
1,295,644.68x = 1,787,992.38 × 722,670.12 - Step 4: Simplify right side
1,295,644.68x = 1,292,128,667,813.69 - Step 5: Solve for x
x = 1,292,128,667,813.69/1,295,644.68 - Step 6: Final answer
x = 997,286.28
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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.