Finding the Fourth Proportional to 528,655.52, 729,542.79 and 286,938.08
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Solution
The fourth proportional to 528,655.52, 729,542.79 and 286,938.08 is: 395,973.56
Step by Step Solution
- Step 1: Write the proportion equation
528,655.52 : 729,542.79 = 286,938.08 : x - Step 2: Convert to fraction form
528,655.52/729,542.79 = 286,938.08/x - Step 3: Cross multiply
528,655.52x = 729,542.79 × 286,938.08 - Step 4: Simplify right side
528,655.52x = 209,333,603,792.73 - Step 5: Solve for x
x = 209,333,603,792.73/528,655.52 - Step 6: Final answer
x = 395,973.56
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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.