Finding the Fourth Proportional to 805,122.95, 1,207,683.65 and 206,083.15
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Solution
The fourth proportional to 805,122.95, 1,207,683.65 and 206,083.15 is: 309,124.52
Step by Step Solution
- Step 1: Write the proportion equation
805,122.95 : 1,207,683.65 = 206,083.15 : x - Step 2: Convert to fraction form
805,122.95/1,207,683.65 = 206,083.15/x - Step 3: Cross multiply
805,122.95x = 1,207,683.65 × 206,083.15 - Step 4: Simplify right side
805,122.95x = 248,883,244,757.08 - Step 5: Solve for x
x = 248,883,244,757.08/805,122.95 - Step 6: Final answer
x = 309,124.52
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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.