Finding the Fourth Proportional to 528,555.33, 729,411.71 and 286,839.99
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Solution
The fourth proportional to 528,555.33, 729,411.71 and 286,839.99 is: 395,842.09
Step by Step Solution
- Step 1: Write the proportion equation
528,555.33 : 729,411.71 = 286,839.99 : x - Step 2: Convert to fraction form
528,555.33/729,411.71 = 286,839.99/x - Step 3: Cross multiply
528,555.33x = 729,411.71 × 286,839.99 - Step 4: Simplify right side
528,555.33x = 209,224,446,168.08 - Step 5: Solve for x
x = 209,224,446,168.08/528,555.33 - Step 6: Final answer
x = 395,842.09
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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.