Finding the Fourth Proportional to 815,283.34, 1,124,838.72 and 470,993.62
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Solution
The fourth proportional to 815,283.34, 1,124,838.72 and 470,993.62 is: 649,825.45
Step by Step Solution
- Step 1: Write the proportion equation
815,283.34 : 1,124,838.72 = 470,993.62 : x - Step 2: Convert to fraction form
815,283.34/1,124,838.72 = 470,993.62/x - Step 3: Cross multiply
815,283.34x = 1,124,838.72 × 470,993.62 - Step 4: Simplify right side
815,283.34x = 529,791,860,648.97 - Step 5: Solve for x
x = 529,791,860,648.97/815,283.34 - Step 6: Final answer
x = 649,825.45
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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.