Finding the Fourth Proportional to 1,125,556.50, 1,688,381.48 and 326,838.05
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Solution
The fourth proportional to 1,125,556.50, 1,688,381.48 and 326,838.05 is: 490,270.64
Step by Step Solution
- Step 1: Write the proportion equation
1,125,556.50 : 1,688,381.48 = 326,838.05 : x - Step 2: Convert to fraction form
1,125,556.50/1,688,381.48 = 326,838.05/x - Step 3: Cross multiply
1,125,556.50x = 1,688,381.48 × 326,838.05 - Step 4: Simplify right side
1,125,556.50x = 551,827,300,503.22 - Step 5: Solve for x
x = 551,827,300,503.22/1,125,556.50 - Step 6: Final answer
x = 490,270.64
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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.