Finding the Fourth Proportional to 769,615.53, 1,062,369.12 and 688,903.48
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Solution
The fourth proportional to 769,615.53, 1,062,369.12 and 688,903.48 is: 950,955.07
Step by Step Solution
- Step 1: Write the proportion equation
769,615.53 : 1,062,369.12 = 688,903.48 : x - Step 2: Convert to fraction form
769,615.53/1,062,369.12 = 688,903.48/x - Step 3: Cross multiply
769,615.53x = 1,062,369.12 × 688,903.48 - Step 4: Simplify right side
769,615.53x = 731,869,783,848.81 - Step 5: Solve for x
x = 731,869,783,848.81/769,615.53 - Step 6: Final answer
x = 950,955.07
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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.