Finding the Fourth Proportional to 1,619,493.90, 2,430,709.65 and 821,330.70
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Solution
The fourth proportional to 1,619,493.90, 2,430,709.65 and 821,330.70 is: 1,232,740.96
Step by Step Solution
- Step 1: Write the proportion equation
1,619,493.90 : 2,430,709.65 = 821,330.70 : x - Step 2: Convert to fraction form
1,619,493.90/2,430,709.65 = 821,330.70/x - Step 3: Cross multiply
1,619,493.90x = 2,430,709.65 × 821,330.70 - Step 4: Simplify right side
1,619,493.90x = 1,996,416,458,331.26 - Step 5: Solve for x
x = 1,996,416,458,331.26/1,619,493.90 - Step 6: Final answer
x = 1,232,740.96
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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.