Finding the Fourth Proportional to 755,781.66, 1,042,797.54 and 429,021.99
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Solution
The fourth proportional to 755,781.66, 1,042,797.54 and 429,021.99 is: 591,947.52
Step by Step Solution
- Step 1: Write the proportion equation
755,781.66 : 1,042,797.54 = 429,021.99 : x - Step 2: Convert to fraction form
755,781.66/1,042,797.54 = 429,021.99/x - Step 3: Cross multiply
755,781.66x = 1,042,797.54 × 429,021.99 - Step 4: Simplify right side
755,781.66x = 447,383,075,777.91 - Step 5: Solve for x
x = 447,383,075,777.91/755,781.66 - Step 6: Final answer
x = 591,947.52
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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.