Finding the Fourth Proportional to 763,438.91, 1,144,688.16 and 257,952.14
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Solution
The fourth proportional to 763,438.91, 1,144,688.16 and 257,952.14 is: 386,769.33
Step by Step Solution
- Step 1: Write the proportion equation
763,438.91 : 1,144,688.16 = 257,952.14 : x - Step 2: Convert to fraction form
763,438.91/1,144,688.16 = 257,952.14/x - Step 3: Cross multiply
763,438.91x = 1,144,688.16 × 257,952.14 - Step 4: Simplify right side
763,438.91x = 295,274,754,781.22 - Step 5: Solve for x
x = 295,274,754,781.22/763,438.91 - Step 6: Final answer
x = 386,769.33
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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.