Finding the Fourth Proportional to 1,658,591.64, 2,289,562.67 and 1,115,042.68
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Solution
The fourth proportional to 1,658,591.64, 2,289,562.67 and 1,115,042.68 is: 1,539,233.67
Step by Step Solution
- Step 1: Write the proportion equation
1,658,591.64 : 2,289,562.67 = 1,115,042.68 : x - Step 2: Convert to fraction form
1,658,591.64/2,289,562.67 = 1,115,042.68/x - Step 3: Cross multiply
1,658,591.64x = 2,289,562.67 × 1,115,042.68 - Step 4: Simplify right side
1,658,591.64x = 2,552,960,092,648.46 - Step 5: Solve for x
x = 2,552,960,092,648.46/1,658,591.64 - Step 6: Final answer
x = 1,539,233.67
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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.