Finding the Fourth Proportional to 750,991.28, 1,036,378.68 and 449,126.96
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Solution
The fourth proportional to 750,991.28, 1,036,378.68 and 449,126.96 is: 619,801.61
Step by Step Solution
- Step 1: Write the proportion equation
750,991.28 : 1,036,378.68 = 449,126.96 : x - Step 2: Convert to fraction form
750,991.28/1,036,378.68 = 449,126.96/x - Step 3: Cross multiply
750,991.28x = 1,036,378.68 × 449,126.96 - Step 4: Simplify right side
750,991.28x = 465,465,605,957.21 - Step 5: Solve for x
x = 465,465,605,957.21/750,991.28 - Step 6: Final answer
x = 619,801.61
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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.