Finding the Fourth Proportional to 1,092,138.70, 1,638,208.05 and 619,746.70
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Solution
The fourth proportional to 1,092,138.70, 1,638,208.05 and 619,746.70 is: 929,620.05
Step by Step Solution
- Step 1: Write the proportion equation
1,092,138.70 : 1,638,208.05 = 619,746.70 : x - Step 2: Convert to fraction form
1,092,138.70/1,638,208.05 = 619,746.70/x - Step 3: Cross multiply
1,092,138.70x = 1,638,208.05 × 619,746.70 - Step 4: Simplify right side
1,092,138.70x = 1,015,274,032,900.94 - Step 5: Solve for x
x = 1,015,274,032,900.94/1,092,138.70 - Step 6: Final answer
x = 929,620.05
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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.