Finding the Fourth Proportional to 2,106,876.56, 2,907,468.68 and 1,139,985.63
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Solution
The fourth proportional to 2,106,876.56, 2,907,468.68 and 1,139,985.63 is: 1,573,168.82
Step by Step Solution
- Step 1: Write the proportion equation
2,106,876.56 : 2,907,468.68 = 1,139,985.63 : x - Step 2: Convert to fraction form
2,106,876.56/2,907,468.68 = 1,139,985.63/x - Step 3: Cross multiply
2,106,876.56x = 2,907,468.68 × 1,139,985.63 - Step 4: Simplify right side
2,106,876.56x = 3,314,472,509,175.14 - Step 5: Solve for x
x = 3,314,472,509,175.14/2,106,876.56 - Step 6: Final answer
x = 1,573,168.82
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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.