Finding the Fourth Proportional to 1,385,437.68, 1,911,936.42 and 773,569.76
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Solution
The fourth proportional to 1,385,437.68, 1,911,936.42 and 773,569.76 is: 1,067,544.36
Step by Step Solution
- Step 1: Write the proportion equation
1,385,437.68 : 1,911,936.42 = 773,569.76 : x - Step 2: Convert to fraction form
1,385,437.68/1,911,936.42 = 773,569.76/x - Step 3: Cross multiply
1,385,437.68x = 1,911,936.42 × 773,569.76 - Step 4: Simplify right side
1,385,437.68x = 1,479,016,187,994.98 - Step 5: Solve for x
x = 1,479,016,187,994.98/1,385,437.68 - Step 6: Final answer
x = 1,067,544.36
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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.