Finding the Fourth Proportional to 1,681,453.20, 2,320,461.36 and 917,548.68
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Solution
The fourth proportional to 1,681,453.20, 2,320,461.36 and 917,548.68 is: 1,266,247.71
Step by Step Solution
- Step 1: Write the proportion equation
1,681,453.20 : 2,320,461.36 = 917,548.68 : x - Step 2: Convert to fraction form
1,681,453.20/2,320,461.36 = 917,548.68/x - Step 3: Cross multiply
1,681,453.20x = 2,320,461.36 × 917,548.68 - Step 4: Simplify right side
1,681,453.20x = 2,129,136,257,859.01 - Step 5: Solve for x
x = 2,129,136,257,859.01/1,681,453.20 - Step 6: Final answer
x = 1,266,247.71
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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.