Finding the Fourth Proportional to 692,154.20, 1,038,231.30 and 479,577.80
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Solution
The fourth proportional to 692,154.20, 1,038,231.30 and 479,577.80 is: 719,366.70
Step by Step Solution
- Step 1: Write the proportion equation
692,154.20 : 1,038,231.30 = 479,577.80 : x - Step 2: Convert to fraction form
692,154.20/1,038,231.30 = 479,577.80/x - Step 3: Cross multiply
692,154.20x = 1,038,231.30 × 479,577.80 - Step 4: Simplify right side
692,154.20x = 497,912,682,745.14 - Step 5: Solve for x
x = 497,912,682,745.14/692,154.20 - Step 6: Final answer
x = 719,366.70
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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.