Finding the Fourth Proportional to 1,153,160.57, 1,591,459.98 and 643,961.36
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Solution
The fourth proportional to 1,153,160.57, 1,591,459.98 and 643,961.36 is: 888,721.62
Step by Step Solution
- Step 1: Write the proportion equation
1,153,160.57 : 1,591,459.98 = 643,961.36 : x - Step 2: Convert to fraction form
1,153,160.57/1,591,459.98 = 643,961.36/x - Step 3: Cross multiply
1,153,160.57x = 1,591,459.98 × 643,961.36 - Step 4: Simplify right side
1,153,160.57x = 1,024,838,733,106.37 - Step 5: Solve for x
x = 1,024,838,733,106.37/1,153,160.57 - Step 6: Final answer
x = 888,721.62
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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.