Finding the Fourth Proportional to 1,885,974.88, 2,603,145.94 and 1,161,430.08
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Solution
The fourth proportional to 1,885,974.88, 2,603,145.94 and 1,161,430.08 is: 1,603,081.80
Step by Step Solution
- Step 1: Write the proportion equation
1,885,974.88 : 2,603,145.94 = 1,161,430.08 : x - Step 2: Convert to fraction form
1,885,974.88/2,603,145.94 = 1,161,430.08/x - Step 3: Cross multiply
1,885,974.88x = 2,603,145.94 × 1,161,430.08 - Step 4: Simplify right side
1,885,974.88x = 3,023,371,997,345.88 - Step 5: Solve for x
x = 3,023,371,997,345.88/1,885,974.88 - Step 6: Final answer
x = 1,603,081.80
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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.