Finding the Fourth Proportional to 1,173,085.98, 1,618,852.95 and 636,541.98
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Solution
The fourth proportional to 1,173,085.98, 1,618,852.95 and 636,541.98 is: 878,424.84
Step by Step Solution
- Step 1: Write the proportion equation
1,173,085.98 : 1,618,852.95 = 636,541.98 : x - Step 2: Convert to fraction form
1,173,085.98/1,618,852.95 = 636,541.98/x - Step 3: Cross multiply
1,173,085.98x = 1,618,852.95 × 636,541.98 - Step 4: Simplify right side
1,173,085.98x = 1,030,467,862,121.84 - Step 5: Solve for x
x = 1,030,467,862,121.84/1,173,085.98 - Step 6: Final answer
x = 878,424.84
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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.