Finding the Fourth Proportional to 1,129,585.40, 1,558,838.69 and 620,298.44
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Solution
The fourth proportional to 1,129,585.40, 1,558,838.69 and 620,298.44 is: 856,017.79
Step by Step Solution
- Step 1: Write the proportion equation
1,129,585.40 : 1,558,838.69 = 620,298.44 : x - Step 2: Convert to fraction form
1,129,585.40/1,558,838.69 = 620,298.44/x - Step 3: Cross multiply
1,129,585.40x = 1,558,838.69 × 620,298.44 - Step 4: Simplify right side
1,129,585.40x = 966,945,196,722.96 - Step 5: Solve for x
x = 966,945,196,722.96/1,129,585.40 - Step 6: Final answer
x = 856,017.79
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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.