Finding the Fourth Proportional to 1,821,156.28, 2,513,215.99 and 1,005,360.37
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Solution
The fourth proportional to 1,821,156.28, 2,513,215.99 and 1,005,360.37 is: 1,387,408.53
Step by Step Solution
- Step 1: Write the proportion equation
1,821,156.28 : 2,513,215.99 = 1,005,360.37 : x - Step 2: Convert to fraction form
1,821,156.28/2,513,215.99 = 1,005,360.37/x - Step 3: Cross multiply
1,821,156.28x = 2,513,215.99 × 1,005,360.37 - Step 4: Simplify right side
1,821,156.28x = 2,526,687,752,569.98 - Step 5: Solve for x
x = 2,526,687,752,569.98/1,821,156.28 - Step 6: Final answer
x = 1,387,408.53
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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.