Finding the Fourth Proportional to 1,543,220.88, 2,313,985.68 and 477,967.20
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Solution
The fourth proportional to 1,543,220.88, 2,313,985.68 and 477,967.20 is: 716,688.89
Step by Step Solution
- Step 1: Write the proportion equation
1,543,220.88 : 2,313,985.68 = 477,967.20 : x - Step 2: Convert to fraction form
1,543,220.88/2,313,985.68 = 477,967.20/x - Step 3: Cross multiply
1,543,220.88x = 2,313,985.68 × 477,967.20 - Step 4: Simplify right side
1,543,220.88x = 1,106,009,256,309.70 - Step 5: Solve for x
x = 1,106,009,256,309.70/1,543,220.88 - Step 6: Final answer
x = 716,688.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.