Finding the Fourth Proportional to 769,791.84, 1,062,269.80 and 425,607.84
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Solution
The fourth proportional to 769,791.84, 1,062,269.80 and 425,607.84 is: 587,315.08
Step by Step Solution
- Step 1: Write the proportion equation
769,791.84 : 1,062,269.80 = 425,607.84 : x - Step 2: Convert to fraction form
769,791.84/1,062,269.80 = 425,607.84/x - Step 3: Cross multiply
769,791.84x = 1,062,269.80 × 425,607.84 - Step 4: Simplify right side
769,791.84x = 452,110,355,075.23 - Step 5: Solve for x
x = 452,110,355,075.23/769,791.84 - Step 6: Final answer
x = 587,315.08
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1.5x scale
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.