Finding the Fourth Proportional to 684,471.90, 1,026,778.28 and 258,366.63
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Solution
The fourth proportional to 684,471.90, 1,026,778.28 and 258,366.63 is: 387,576.53
Step by Step Solution
- Step 1: Write the proportion equation
684,471.90 : 1,026,778.28 = 258,366.63 : x - Step 2: Convert to fraction form
684,471.90/1,026,778.28 = 258,366.63/x - Step 3: Cross multiply
684,471.90x = 1,026,778.28 × 258,366.63 - Step 4: Simplify right side
684,471.90x = 265,285,242,668.96 - Step 5: Solve for x
x = 265,285,242,668.96/684,471.90 - Step 6: Final answer
x = 387,576.53
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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.