Finding the Fourth Proportional to 1,129,501.44, 1,558,736.64 and 620,225.28
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Solution
The fourth proportional to 1,129,501.44, 1,558,736.64 and 620,225.28 is: 855,924.42
Step by Step Solution
- Step 1: Write the proportion equation
1,129,501.44 : 1,558,736.64 = 620,225.28 : x - Step 2: Convert to fraction form
1,129,501.44/1,558,736.64 = 620,225.28/x - Step 3: Cross multiply
1,129,501.44x = 1,558,736.64 × 620,225.28 - Step 4: Simplify right side
1,129,501.44x = 966,767,868,990.26 - Step 5: Solve for x
x = 966,767,868,990.26/1,129,501.44 - Step 6: Final answer
x = 855,924.42
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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.