Finding the Fourth Proportional to 1,515,641.50, 2,091,585.45 and 836,578.18
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Solution
The fourth proportional to 1,515,641.50, 2,091,585.45 and 836,578.18 is: 1,154,477.99
Step by Step Solution
- Step 1: Write the proportion equation
1,515,641.50 : 2,091,585.45 = 836,578.18 : x - Step 2: Convert to fraction form
1,515,641.50/2,091,585.45 = 836,578.18/x - Step 3: Cross multiply
1,515,641.50x = 2,091,585.45 × 836,578.18 - Step 4: Simplify right side
1,515,641.50x = 1,749,774,749,075.48 - Step 5: Solve for x
x = 1,749,774,749,075.48/1,515,641.50 - Step 6: Final answer
x = 1,154,477.99
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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.