Finding the Fourth Proportional to 1,393,258.24, 1,921,879.80 and 876,191.98
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Solution
The fourth proportional to 1,393,258.24, 1,921,879.80 and 876,191.98 is: 1,208,631.41
Step by Step Solution
- Step 1: Write the proportion equation
1,393,258.24 : 1,921,879.80 = 876,191.98 : x - Step 2: Convert to fraction form
1,393,258.24/1,921,879.80 = 876,191.98/x - Step 3: Cross multiply
1,393,258.24x = 1,921,879.80 × 876,191.98 - Step 4: Simplify right side
1,393,258.24x = 1,683,935,667,284.00 - Step 5: Solve for x
x = 1,683,935,667,284.00/1,393,258.24 - Step 6: Final answer
x = 1,208,631.41
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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.