Finding the Fourth Proportional to 769,519.68, 1,062,233.28 and 688,804.80
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Solution
The fourth proportional to 769,519.68, 1,062,233.28 and 688,804.80 is: 950,815.69
Step by Step Solution
- Step 1: Write the proportion equation
769,519.68 : 1,062,233.28 = 688,804.80 : x - Step 2: Convert to fraction form
769,519.68/1,062,233.28 = 688,804.80/x - Step 3: Cross multiply
769,519.68x = 1,062,233.28 × 688,804.80 - Step 4: Simplify right side
769,519.68x = 731,671,381,983.74 - Step 5: Solve for x
x = 731,671,381,983.74/769,519.68 - Step 6: Final answer
x = 950,815.69
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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.