Finding the Fourth Proportional to 1,122,914.24, 1,683,696.71 and 438,986.51
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Solution
The fourth proportional to 1,122,914.24, 1,683,696.71 and 438,986.51 is: 658,216.02
Step by Step Solution
- Step 1: Write the proportion equation
1,122,914.24 : 1,683,696.71 = 438,986.51 : x - Step 2: Convert to fraction form
1,122,914.24/1,683,696.71 = 438,986.51/x - Step 3: Cross multiply
1,122,914.24x = 1,683,696.71 × 438,986.51 - Step 4: Simplify right side
1,122,914.24x = 739,120,141,523.92 - Step 5: Solve for x
x = 739,120,141,523.92/1,122,914.24 - Step 6: Final answer
x = 658,216.02
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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.