Finding the Fourth Proportional to 4,087,695.42, 5,640,749.64 and 2,455,132.68
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Solution
The fourth proportional to 4,087,695.42, 5,640,749.64 and 2,455,132.68 is: 3,387,920.91
Step by Step Solution
- Step 1: Write the proportion equation
4,087,695.42 : 5,640,749.64 = 2,455,132.68 : x - Step 2: Convert to fraction form
4,087,695.42/5,640,749.64 = 2,455,132.68/x - Step 3: Cross multiply
4,087,695.42x = 5,640,749.64 × 2,455,132.68 - Step 4: Simplify right side
4,087,695.42x = 13,848,788,780,862.23 - Step 5: Solve for x
x = 13,848,788,780,862.23/4,087,695.42 - Step 6: Final answer
x = 3,387,920.91
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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.