Finding the Fourth Proportional to 1,681,434.19, 2,320,435.19 and 917,529.67
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Solution
The fourth proportional to 1,681,434.19, 2,320,435.19 and 917,529.67 is: 1,266,221.50
Step by Step Solution
- Step 1: Write the proportion equation
1,681,434.19 : 2,320,435.19 = 917,529.67 : x - Step 2: Convert to fraction form
1,681,434.19/2,320,435.19 = 917,529.67/x - Step 3: Cross multiply
1,681,434.19x = 2,320,435.19 × 917,529.67 - Step 4: Simplify right side
1,681,434.19x = 2,129,068,117,947.26 - Step 5: Solve for x
x = 2,129,068,117,947.26/1,681,434.19 - Step 6: Final answer
x = 1,266,221.50
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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.