Finding the Fourth Proportional to 745,889.92, 1,029,329.44 and 423,599.96
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Solution
The fourth proportional to 745,889.92, 1,029,329.44 and 423,599.96 is: 584,568.72
Step by Step Solution
- Step 1: Write the proportion equation
745,889.92 : 1,029,329.44 = 423,599.96 : x - Step 2: Convert to fraction form
745,889.92/1,029,329.44 = 423,599.96/x - Step 3: Cross multiply
745,889.92x = 1,029,329.44 × 423,599.96 - Step 4: Simplify right side
745,889.92x = 436,023,911,125.15 - Step 5: Solve for x
x = 436,023,911,125.15/745,889.92 - Step 6: Final answer
x = 584,568.72
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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.