Finding the Fourth Proportional to 689,649.92, 1,034,474.88 and 216,373.12
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Solution
The fourth proportional to 689,649.92, 1,034,474.88 and 216,373.12 is: 324,559.68
Step by Step Solution
- Step 1: Write the proportion equation
689,649.92 : 1,034,474.88 = 216,373.12 : x - Step 2: Convert to fraction form
689,649.92/1,034,474.88 = 216,373.12/x - Step 3: Cross multiply
689,649.92x = 1,034,474.88 × 216,373.12 - Step 4: Simplify right side
689,649.92x = 223,832,557,347.23 - Step 5: Solve for x
x = 223,832,557,347.23/689,649.92 - Step 6: Final answer
x = 324,559.68
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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.