Finding the Fourth Proportional to 1,129,513.63, 1,558,739.74 and 620,226.94
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Solution
The fourth proportional to 1,129,513.63, 1,558,739.74 and 620,226.94 is: 855,919.18
Step by Step Solution
- Step 1: Write the proportion equation
1,129,513.63 : 1,558,739.74 = 620,226.94 : x - Step 2: Convert to fraction form
1,129,513.63/1,558,739.74 = 620,226.94/x - Step 3: Cross multiply
1,129,513.63x = 1,558,739.74 × 620,226.94 - Step 4: Simplify right side
1,129,513.63x = 966,772,371,402.90 - Step 5: Solve for x
x = 966,772,371,402.90/1,129,513.63 - Step 6: Final answer
x = 855,919.18
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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.