Finding the Fourth Proportional to 1,122,827.07, 1,681,222.49 and 855,313.23
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Solution
The fourth proportional to 1,122,827.07, 1,681,222.49 and 855,313.23 is: 1,280,670.79
Step by Step Solution
- Step 1: Write the proportion equation
1,122,827.07 : 1,681,222.49 = 855,313.23 : x - Step 2: Convert to fraction form
1,122,827.07/1,681,222.49 = 855,313.23/x - Step 3: Cross multiply
1,122,827.07x = 1,681,222.49 × 855,313.23 - Step 4: Simplify right side
1,122,827.07x = 1,437,971,833,993.98 - Step 5: Solve for x
x = 1,437,971,833,993.98/1,122,827.07 - Step 6: Final answer
x = 1,280,670.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.