Finding the Fourth Proportional to 1,821,129.08, 2,513,142.72 and 1,005,315.26
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Solution
The fourth proportional to 1,821,129.08, 2,513,142.72 and 1,005,315.26 is: 1,387,326.55
Step by Step Solution
- Step 1: Write the proportion equation
1,821,129.08 : 2,513,142.72 = 1,005,315.26 : x - Step 2: Convert to fraction form
1,821,129.08/2,513,142.72 = 1,005,315.26/x - Step 3: Cross multiply
1,821,129.08x = 2,513,142.72 × 1,005,315.26 - Step 4: Simplify right side
1,821,129.08x = 2,526,500,714,408.19 - Step 5: Solve for x
x = 2,526,500,714,408.19/1,821,129.08 - Step 6: Final answer
x = 1,387,326.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.