Finding the Fourth Proportional to 1,549,577.62, 2,138,471.94 and 861,263.20
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Solution
The fourth proportional to 1,549,577.62, 2,138,471.94 and 861,263.20 is: 1,188,573.69
Step by Step Solution
- Step 1: Write the proportion equation
1,549,577.62 : 2,138,471.94 = 861,263.20 : x - Step 2: Convert to fraction form
1,549,577.62/2,138,471.94 = 861,263.20/x - Step 3: Cross multiply
1,549,577.62x = 2,138,471.94 × 861,263.20 - Step 4: Simplify right side
1,549,577.62x = 1,841,787,186,154.61 - Step 5: Solve for x
x = 1,841,787,186,154.61/1,549,577.62 - Step 6: Final answer
x = 1,188,573.69
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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.