Finding the Fourth Proportional to 1,226,531.08, 1,692,402.30 and 1,127,316.28
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Solution
The fourth proportional to 1,226,531.08, 1,692,402.30 and 1,127,316.28 is: 1,555,502.91
Step by Step Solution
- Step 1: Write the proportion equation
1,226,531.08 : 1,692,402.30 = 1,127,316.28 : x - Step 2: Convert to fraction form
1,226,531.08/1,692,402.30 = 1,127,316.28/x - Step 3: Cross multiply
1,226,531.08x = 1,692,402.30 × 1,127,316.28 - Step 4: Simplify right side
1,226,531.08x = 1,907,872,665,099.44 - Step 5: Solve for x
x = 1,907,872,665,099.44/1,226,531.08 - Step 6: Final answer
x = 1,555,502.91
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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.