Finding the Fourth Proportional to 998,611.80, 1,377,697.05 and 635,970.75
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Solution
The fourth proportional to 998,611.80, 1,377,697.05 and 635,970.75 is: 877,393.02
Step by Step Solution
- Step 1: Write the proportion equation
998,611.80 : 1,377,697.05 = 635,970.75 : x - Step 2: Convert to fraction form
998,611.80/1,377,697.05 = 635,970.75/x - Step 3: Cross multiply
998,611.80x = 1,377,697.05 × 635,970.75 - Step 4: Simplify right side
998,611.80x = 876,175,026,161.29 - Step 5: Solve for x
x = 876,175,026,161.29/998,611.80 - Step 6: Final answer
x = 877,393.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.