Finding the Fourth Proportional to 378,774.81, 524,966.63 and 371,688.93
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Solution
The fourth proportional to 378,774.81, 524,966.63 and 371,688.93 is: 515,145.88
Step by Step Solution
- Step 1: Write the proportion equation
378,774.81 : 524,966.63 = 371,688.93 : x - Step 2: Convert to fraction form
378,774.81/524,966.63 = 371,688.93/x - Step 3: Cross multiply
378,774.81x = 524,966.63 × 371,688.93 - Step 4: Simplify right side
378,774.81x = 195,124,283,131.96 - Step 5: Solve for x
x = 195,124,283,131.96/378,774.81 - Step 6: Final answer
x = 515,145.88
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.