Finding the Fourth Proportional to 656,881.41, 906,523.28 and 415,075.75
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Solution
The fourth proportional to 656,881.41, 906,523.28 and 415,075.75 is: 572,821.55
Step by Step Solution
- Step 1: Write the proportion equation
656,881.41 : 906,523.28 = 415,075.75 : x - Step 2: Convert to fraction form
656,881.41/906,523.28 = 415,075.75/x - Step 3: Cross multiply
656,881.41x = 906,523.28 × 415,075.75 - Step 4: Simplify right side
656,881.41x = 376,275,830,338.46 - Step 5: Solve for x
x = 376,275,830,338.46/656,881.41 - Step 6: Final answer
x = 572,821.55
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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.