Finding the Fourth Proportional to 2,040,405.48, 2,815,781.16 and 1,122,646.68
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Solution
The fourth proportional to 2,040,405.48, 2,815,781.16 and 1,122,646.68 is: 1,549,264.30
Step by Step Solution
- Step 1: Write the proportion equation
2,040,405.48 : 2,815,781.16 = 1,122,646.68 : x - Step 2: Convert to fraction form
2,040,405.48/2,815,781.16 = 1,122,646.68/x - Step 3: Cross multiply
2,040,405.48x = 2,815,781.16 × 1,122,646.68 - Step 4: Simplify right side
2,040,405.48x = 3,161,127,370,880.55 - Step 5: Solve for x
x = 3,161,127,370,880.55/2,040,405.48 - Step 6: Final answer
x = 1,549,264.30
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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.