Finding the Fourth Proportional to 893,122.60, 1,339,683.90 and 861,629.80
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Solution
The fourth proportional to 893,122.60, 1,339,683.90 and 861,629.80 is: 1,292,444.70
Step by Step Solution
- Step 1: Write the proportion equation
893,122.60 : 1,339,683.90 = 861,629.80 : x - Step 2: Convert to fraction form
893,122.60/1,339,683.90 = 861,629.80/x - Step 3: Cross multiply
893,122.60x = 1,339,683.90 × 861,629.80 - Step 4: Simplify right side
893,122.60x = 1,154,311,570,820.22 - Step 5: Solve for x
x = 1,154,311,570,820.22/893,122.60 - Step 6: Final answer
x = 1,292,444.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.