Finding the Fourth Proportional to 1,427,781.26, 2,140,982.96 and 828,893.18
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Solution
The fourth proportional to 1,427,781.26, 2,140,982.96 and 828,893.18 is: 1,242,939.81
Step by Step Solution
- Step 1: Write the proportion equation
1,427,781.26 : 2,140,982.96 = 828,893.18 : x - Step 2: Convert to fraction form
1,427,781.26/2,140,982.96 = 828,893.18/x - Step 3: Cross multiply
1,427,781.26x = 2,140,982.96 × 828,893.18 - Step 4: Simplify right side
1,427,781.26x = 1,774,646,174,040.21 - Step 5: Solve for x
x = 1,774,646,174,040.21/1,427,781.26 - Step 6: Final answer
x = 1,242,939.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.