Finding the Fourth Proportional to 1,561,235.91, 2,153,716.25 and 1,045,011.57
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Solution
The fourth proportional to 1,561,235.91, 2,153,716.25 and 1,045,011.57 is: 1,441,587.65
Step by Step Solution
- Step 1: Write the proportion equation
1,561,235.91 : 2,153,716.25 = 1,045,011.57 : x - Step 2: Convert to fraction form
1,561,235.91/2,153,716.25 = 1,045,011.57/x - Step 3: Cross multiply
1,561,235.91x = 2,153,716.25 × 1,045,011.57 - Step 4: Simplify right side
1,561,235.91x = 2,250,658,399,747.01 - Step 5: Solve for x
x = 2,250,658,399,747.01/1,561,235.91 - Step 6: Final answer
x = 1,441,587.65
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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.