Finding the Fourth Proportional to 1,557,085.84, 2,148,775.48 and 868,716.74
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Solution
The fourth proportional to 1,557,085.84, 2,148,775.48 and 868,716.74 is: 1,198,827.43
Step by Step Solution
- Step 1: Write the proportion equation
1,557,085.84 : 2,148,775.48 = 868,716.74 : x - Step 2: Convert to fraction form
1,557,085.84/2,148,775.48 = 868,716.74/x - Step 3: Cross multiply
1,557,085.84x = 2,148,775.48 × 868,716.74 - Step 4: Simplify right side
1,557,085.84x = 1,866,677,219,461.98 - Step 5: Solve for x
x = 1,866,677,219,461.98/1,557,085.84 - Step 6: Final answer
x = 1,198,827.43
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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.