Finding the Fourth Proportional to 1,326,867.10, 1,989,121.94 and 517,064.06
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Solution
The fourth proportional to 1,326,867.10, 1,989,121.94 and 517,064.06 is: 775,136.76
Step by Step Solution
- Step 1: Write the proportion equation
1,326,867.10 : 1,989,121.94 = 517,064.06 : x - Step 2: Convert to fraction form
1,326,867.10/1,989,121.94 = 517,064.06/x - Step 3: Cross multiply
1,326,867.10x = 1,989,121.94 × 517,064.06 - Step 4: Simplify right side
1,326,867.10x = 1,028,503,466,131.48 - Step 5: Solve for x
x = 1,028,503,466,131.48/1,326,867.10 - Step 6: Final answer
x = 775,136.76
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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.