Finding the Fourth Proportional to 1,326,862.84, 1,989,115.58 and 517,059.80
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Solution
The fourth proportional to 1,326,862.84, 1,989,115.58 and 517,059.80 is: 775,130.38
Step by Step Solution
- Step 1: Write the proportion equation
1,326,862.84 : 1,989,115.58 = 517,059.80 : x - Step 2: Convert to fraction form
1,326,862.84/1,989,115.58 = 517,059.80/x - Step 3: Cross multiply
1,326,862.84x = 1,989,115.58 × 517,059.80 - Step 4: Simplify right side
1,326,862.84x = 1,028,491,703,971.68 - Step 5: Solve for x
x = 1,028,491,703,971.68/1,326,862.84 - Step 6: Final answer
x = 775,130.38
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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.