Finding the Fourth Proportional to 528,642.72, 729,537.83 and 299,199.99
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Solution
The fourth proportional to 528,642.72, 729,537.83 and 299,199.99 is: 412,902.14
Step by Step Solution
- Step 1: Write the proportion equation
528,642.72 : 729,537.83 = 299,199.99 : x - Step 2: Convert to fraction form
528,642.72/729,537.83 = 299,199.99/x - Step 3: Cross multiply
528,642.72x = 729,537.83 × 299,199.99 - Step 4: Simplify right side
528,642.72x = 218,277,712,188.62 - Step 5: Solve for x
x = 218,277,712,188.62/528,642.72 - Step 6: Final answer
x = 412,902.14
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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.