Finding the Fourth Proportional to 818,419.08, 1,129,027.15 and 635,881.80
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Solution
The fourth proportional to 818,419.08, 1,129,027.15 and 635,881.80 is: 877,212.95
Step by Step Solution
- Step 1: Write the proportion equation
818,419.08 : 1,129,027.15 = 635,881.80 : x - Step 2: Convert to fraction form
818,419.08/1,129,027.15 = 635,881.80/x - Step 3: Cross multiply
818,419.08x = 1,129,027.15 × 635,881.80 - Step 4: Simplify right side
818,419.08x = 717,927,816,390.87 - Step 5: Solve for x
x = 717,927,816,390.87/818,419.08 - Step 6: Final answer
x = 877,212.95
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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.