Finding the Fourth Proportional to 761,415.75, 1,142,141.99 and 255,983.31
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Solution
The fourth proportional to 761,415.75, 1,142,141.99 and 255,983.31 is: 383,981.14
Step by Step Solution
- Step 1: Write the proportion equation
761,415.75 : 1,142,141.99 = 255,983.31 : x - Step 2: Convert to fraction form
761,415.75/1,142,141.99 = 255,983.31/x - Step 3: Cross multiply
761,415.75x = 1,142,141.99 × 255,983.31 - Step 4: Simplify right side
761,415.75x = 292,369,285,810.27 - Step 5: Solve for x
x = 292,369,285,810.27/761,415.75 - Step 6: Final answer
x = 383,981.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.