Finding the Fourth Proportional to 1,129,336.44, 1,558,487.34 and 620,071.80
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Solution
The fourth proportional to 1,129,336.44, 1,558,487.34 and 620,071.80 is: 855,700.76
Step by Step Solution
- Step 1: Write the proportion equation
1,129,336.44 : 1,558,487.34 = 620,071.80 : x - Step 2: Convert to fraction form
1,129,336.44/1,558,487.34 = 620,071.80/x - Step 3: Cross multiply
1,129,336.44x = 1,558,487.34 × 620,071.80 - Step 4: Simplify right side
1,129,336.44x = 966,374,050,191.01 - Step 5: Solve for x
x = 966,374,050,191.01/1,129,336.44 - Step 6: Final answer
x = 855,700.76
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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.