Finding the Fourth Proportional to 1,873,078.12, 2,584,855.68 and 1,013,638.42
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Solution
The fourth proportional to 1,873,078.12, 2,584,855.68 and 1,013,638.42 is: 1,398,825.28
Step by Step Solution
- Step 1: Write the proportion equation
1,873,078.12 : 2,584,855.68 = 1,013,638.42 : x - Step 2: Convert to fraction form
1,873,078.12/2,584,855.68 = 1,013,638.42/x - Step 3: Cross multiply
1,873,078.12x = 2,584,855.68 × 1,013,638.42 - Step 4: Simplify right side
1,873,078.12x = 2,620,109,014,478.95 - Step 5: Solve for x
x = 2,620,109,014,478.95/1,873,078.12 - Step 6: Final answer
x = 1,398,825.28
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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.