Finding the Fourth Proportional to 664,363.70, 996,982.95 and 380,053.70
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Solution
The fourth proportional to 664,363.70, 996,982.95 and 380,053.70 is: 570,330.77
Step by Step Solution
- Step 1: Write the proportion equation
664,363.70 : 996,982.95 = 380,053.70 : x - Step 2: Convert to fraction form
664,363.70/996,982.95 = 380,053.70/x - Step 3: Cross multiply
664,363.70x = 996,982.95 × 380,053.70 - Step 4: Simplify right side
664,363.70x = 378,907,058,984.42 - Step 5: Solve for x
x = 378,907,058,984.42/664,363.70 - Step 6: Final answer
x = 570,330.77
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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.