Finding the Fourth Proportional to 1,103,440.10, 1,523,371.66 and 716,601.49
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Solution
The fourth proportional to 1,103,440.10, 1,523,371.66 and 716,601.49 is: 989,315.50
Step by Step Solution
- Step 1: Write the proportion equation
1,103,440.10 : 1,523,371.66 = 716,601.49 : x - Step 2: Convert to fraction form
1,103,440.10/1,523,371.66 = 716,601.49/x - Step 3: Cross multiply
1,103,440.10x = 1,523,371.66 × 716,601.49 - Step 4: Simplify right side
1,103,440.10x = 1,091,650,395,779.84 - Step 5: Solve for x
x = 1,091,650,395,779.84/1,103,440.10 - Step 6: Final answer
x = 989,315.50
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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.