Finding the Fourth Proportional to 1,153,163.94, 1,591,217.91 and 643,887.78
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Solution
The fourth proportional to 1,153,163.94, 1,591,217.91 and 643,887.78 is: 888,482.32
Step by Step Solution
- Step 1: Write the proportion equation
1,153,163.94 : 1,591,217.91 = 643,887.78 : x - Step 2: Convert to fraction form
1,153,163.94/1,591,217.91 = 643,887.78/x - Step 3: Cross multiply
1,153,163.94x = 1,591,217.91 × 643,887.78 - Step 4: Simplify right side
1,153,163.94x = 1,024,565,767,566.14 - Step 5: Solve for x
x = 1,024,565,767,566.14/1,153,163.94 - Step 6: Final answer
x = 888,482.32
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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.