Finding the Fourth Proportional to 918,108.80, 1,377,163.20 and 740,961.80
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Solution
The fourth proportional to 918,108.80, 1,377,163.20 and 740,961.80 is: 1,111,442.70
Step by Step Solution
- Step 1: Write the proportion equation
918,108.80 : 1,377,163.20 = 740,961.80 : x - Step 2: Convert to fraction form
918,108.80/1,377,163.20 = 740,961.80/x - Step 3: Cross multiply
918,108.80x = 1,377,163.20 × 740,961.80 - Step 4: Simplify right side
918,108.80x = 1,020,425,323,565.76 - Step 5: Solve for x
x = 1,020,425,323,565.76/918,108.80 - Step 6: Final answer
x = 1,111,442.70
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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.