Finding the Fourth Proportional to 684,742.19, 1,026,912.59 and 257,970.09
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Solution
The fourth proportional to 684,742.19, 1,026,912.59 and 257,970.09 is: 386,879.53
Step by Step Solution
- Step 1: Write the proportion equation
684,742.19 : 1,026,912.59 = 257,970.09 : x - Step 2: Convert to fraction form
684,742.19/1,026,912.59 = 257,970.09/x - Step 3: Cross multiply
684,742.19x = 1,026,912.59 × 257,970.09 - Step 4: Simplify right side
684,742.19x = 264,912,733,264.43 - Step 5: Solve for x
x = 264,912,733,264.43/684,742.19 - Step 6: Final answer
x = 386,879.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.