Finding the Fourth Proportional to 753,588.16, 1,130,557.28 and 221,087.68
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Solution
The fourth proportional to 753,588.16, 1,130,557.28 and 221,087.68 is: 331,682.87
Step by Step Solution
- Step 1: Write the proportion equation
753,588.16 : 1,130,557.28 = 221,087.68 : x - Step 2: Convert to fraction form
753,588.16/1,130,557.28 = 221,087.68/x - Step 3: Cross multiply
753,588.16x = 1,130,557.28 × 221,087.68 - Step 4: Simplify right side
753,588.16x = 249,952,286,142.31 - Step 5: Solve for x
x = 249,952,286,142.31/753,588.16 - Step 6: Final answer
x = 331,682.87
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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.