Finding the Fourth Proportional to 1,248,203.20, 1,873,355.12 and 1,169,471.20
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Solution
The fourth proportional to 1,248,203.20, 1,873,355.12 and 1,169,471.20 is: 1,755,190.87
Step by Step Solution
- Step 1: Write the proportion equation
1,248,203.20 : 1,873,355.12 = 1,169,471.20 : x - Step 2: Convert to fraction form
1,248,203.20/1,873,355.12 = 1,169,471.20/x - Step 3: Cross multiply
1,248,203.20x = 1,873,355.12 × 1,169,471.20 - Step 4: Simplify right side
1,248,203.20x = 2,190,834,860,212.54 - Step 5: Solve for x
x = 2,190,834,860,212.54/1,248,203.20 - Step 6: Final answer
x = 1,755,190.87
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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.