Finding the Fourth Proportional to 1,325,811.54, 1,829,560.87 and 774,578.40
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Solution
The fourth proportional to 1,325,811.54, 1,829,560.87 and 774,578.40 is: 1,068,883.69
Step by Step Solution
- Step 1: Write the proportion equation
1,325,811.54 : 1,829,560.87 = 774,578.40 : x - Step 2: Convert to fraction form
1,325,811.54/1,829,560.87 = 774,578.40/x - Step 3: Cross multiply
1,325,811.54x = 1,829,560.87 × 774,578.40 - Step 4: Simplify right side
1,325,811.54x = 1,417,138,331,387.21 - Step 5: Solve for x
x = 1,417,138,331,387.21/1,325,811.54 - Step 6: Final answer
x = 1,068,883.69
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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.