Finding the Fourth Proportional to 527,572.71, 728,047.80 and 285,855.26
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Solution
The fourth proportional to 527,572.71, 728,047.80 and 285,855.26 is: 394,478.88
Step by Step Solution
- Step 1: Write the proportion equation
527,572.71 : 728,047.80 = 285,855.26 : x - Step 2: Convert to fraction form
527,572.71/728,047.80 = 285,855.26/x - Step 3: Cross multiply
527,572.71x = 728,047.80 × 285,855.26 - Step 4: Simplify right side
527,572.71x = 208,116,289,521.19 - Step 5: Solve for x
x = 208,116,289,521.19/527,572.71 - Step 6: Final answer
x = 394,478.88
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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.