Finding the Fourth Proportional to 1,537,023.52, 2,121,272.37 and 1,278,444.26
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Solution
The fourth proportional to 1,537,023.52, 2,121,272.37 and 1,278,444.26 is: 1,764,402.72
Step by Step Solution
- Step 1: Write the proportion equation
1,537,023.52 : 2,121,272.37 = 1,278,444.26 : x - Step 2: Convert to fraction form
1,537,023.52/2,121,272.37 = 1,278,444.26/x - Step 3: Cross multiply
1,537,023.52x = 2,121,272.37 × 1,278,444.26 - Step 4: Simplify right side
1,537,023.52x = 2,711,928,494,221.90 - Step 5: Solve for x
x = 2,711,928,494,221.90/1,537,023.52 - Step 6: Final answer
x = 1,764,402.72
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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.