Finding the Fourth Proportional to 1,438,124.88, 1,984,335.12 and 865,201.98
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Solution
The fourth proportional to 1,438,124.88, 1,984,335.12 and 865,201.98 is: 1,193,811.96
Step by Step Solution
- Step 1: Write the proportion equation
1,438,124.88 : 1,984,335.12 = 865,201.98 : x - Step 2: Convert to fraction form
1,438,124.88/1,984,335.12 = 865,201.98/x - Step 3: Cross multiply
1,438,124.88x = 1,984,335.12 × 865,201.98 - Step 4: Simplify right side
1,438,124.88x = 1,716,850,674,807.54 - Step 5: Solve for x
x = 1,716,850,674,807.54/1,438,124.88 - Step 6: Final answer
x = 1,193,811.96
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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.