Finding the Fourth Proportional to 450,612.75, 621,855.32 and 249,408.75
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Solution
The fourth proportional to 450,612.75, 621,855.32 and 249,408.75 is: 344,189.46
Step by Step Solution
- Step 1: Write the proportion equation
450,612.75 : 621,855.32 = 249,408.75 : x - Step 2: Convert to fraction form
450,612.75/621,855.32 = 249,408.75/x - Step 3: Cross multiply
450,612.75x = 621,855.32 × 249,408.75 - Step 4: Simplify right side
450,612.75x = 155,096,158,042.05 - Step 5: Solve for x
x = 155,096,158,042.05/450,612.75 - Step 6: Final answer
x = 344,189.46
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1.5x scale
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.