Finding the Fourth Proportional to 1,121,059.81, 1,547,148.18 and 637,596.12
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Solution
The fourth proportional to 1,121,059.81, 1,547,148.18 and 637,596.12 is: 879,931.36
Step by Step Solution
- Step 1: Write the proportion equation
1,121,059.81 : 1,547,148.18 = 637,596.12 : x - Step 2: Convert to fraction form
1,121,059.81/1,547,148.18 = 637,596.12/x - Step 3: Cross multiply
1,121,059.81x = 1,547,148.18 × 637,596.12 - Step 4: Simplify right side
1,121,059.81x = 986,455,684,825.85 - Step 5: Solve for x
x = 986,455,684,825.85/1,121,059.81 - Step 6: Final answer
x = 879,931.36
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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.