Finding the Fourth Proportional to 756,642.51, 1,044,173.70 and 417,122.91
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Solution
The fourth proportional to 756,642.51, 1,044,173.70 and 417,122.91 is: 575,633.50
Step by Step Solution
- Step 1: Write the proportion equation
756,642.51 : 1,044,173.70 = 417,122.91 : x - Step 2: Convert to fraction form
756,642.51/1,044,173.70 = 417,122.91/x - Step 3: Cross multiply
756,642.51x = 1,044,173.70 × 417,122.91 - Step 4: Simplify right side
756,642.51x = 435,548,771,243.24 - Step 5: Solve for x
x = 435,548,771,243.24/756,642.51 - Step 6: Final answer
x = 575,633.50
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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.