Finding the Fourth Proportional to 828,129.30, 1,242,193.95 and 576,186.90
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Solution
The fourth proportional to 828,129.30, 1,242,193.95 and 576,186.90 is: 864,280.35
Step by Step Solution
- Step 1: Write the proportion equation
828,129.30 : 1,242,193.95 = 576,186.90 : x - Step 2: Convert to fraction form
828,129.30/1,242,193.95 = 576,186.90/x - Step 3: Cross multiply
828,129.30x = 1,242,193.95 × 576,186.90 - Step 4: Simplify right side
828,129.30x = 715,735,881,249.26 - Step 5: Solve for x
x = 715,735,881,249.26/828,129.30 - Step 6: Final answer
x = 864,280.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.