Finding the Fourth Proportional to 1,557,505.26, 2,149,220.79 and 869,125.14
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Solution
The fourth proportional to 1,557,505.26, 2,149,220.79 and 869,125.14 is: 1,199,316.54
Step by Step Solution
- Step 1: Write the proportion equation
1,557,505.26 : 2,149,220.79 = 869,125.14 : x - Step 2: Convert to fraction form
1,557,505.26/2,149,220.79 = 869,125.14/x - Step 3: Cross multiply
1,557,505.26x = 2,149,220.79 × 869,125.14 - Step 4: Simplify right side
1,557,505.26x = 1,867,941,819,999.66 - Step 5: Solve for x
x = 1,867,941,819,999.66/1,557,505.26 - Step 6: Final answer
x = 1,199,316.54
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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.