Finding the Fourth Proportional to 2,106,853.68, 2,907,436.68 and 1,139,962.80
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Solution
The fourth proportional to 2,106,853.68, 2,907,436.68 and 1,139,962.80 is: 1,573,137.09
Step by Step Solution
- Step 1: Write the proportion equation
2,106,853.68 : 2,907,436.68 = 1,139,962.80 : x - Step 2: Convert to fraction form
2,106,853.68/2,907,436.68 = 1,139,962.80/x - Step 3: Cross multiply
2,106,853.68x = 2,907,436.68 × 1,139,962.80 - Step 4: Simplify right side
2,106,853.68x = 3,314,369,658,555.50 - Step 5: Solve for x
x = 3,314,369,658,555.50/2,106,853.68 - Step 6: Final answer
x = 1,573,137.09
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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.