Finding the Fourth Proportional to 823,461.96, 1,135,475.10 and 536,449.80
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Solution
The fourth proportional to 823,461.96, 1,135,475.10 and 536,449.80 is: 739,712.85
Step by Step Solution
- Step 1: Write the proportion equation
823,461.96 : 1,135,475.10 = 536,449.80 : x - Step 2: Convert to fraction form
823,461.96/1,135,475.10 = 536,449.80/x - Step 3: Cross multiply
823,461.96x = 1,135,475.10 × 536,449.80 - Step 4: Simplify right side
823,461.96x = 609,125,390,299.98 - Step 5: Solve for x
x = 609,125,390,299.98/823,461.96 - Step 6: Final answer
x = 739,712.85
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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.