Finding the Fourth Proportional to 528,687.99, 729,593.12 and 286,970.54
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Solution
The fourth proportional to 528,687.99, 729,593.12 and 286,970.54 is: 396,021.34
Step by Step Solution
- Step 1: Write the proportion equation
528,687.99 : 729,593.12 = 286,970.54 : x - Step 2: Convert to fraction form
528,687.99/729,593.12 = 286,970.54/x - Step 3: Cross multiply
528,687.99x = 729,593.12 × 286,970.54 - Step 4: Simplify right side
528,687.99x = 209,371,726,543.87 - Step 5: Solve for x
x = 209,371,726,543.87/528,687.99 - Step 6: Final answer
x = 396,021.34
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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.