Finding the Fourth Proportional to 514,830.92, 709,679.12 and 361,438.79
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Solution
The fourth proportional to 514,830.92, 709,679.12 and 361,438.79 is: 498,232.62
Step by Step Solution
- Step 1: Write the proportion equation
514,830.92 : 709,679.12 = 361,438.79 : x - Step 2: Convert to fraction form
514,830.92/709,679.12 = 361,438.79/x - Step 3: Cross multiply
514,830.92x = 709,679.12 × 361,438.79 - Step 4: Simplify right side
514,830.92x = 256,505,557,065.48 - Step 5: Solve for x
x = 256,505,557,065.48/514,830.92 - Step 6: Final answer
x = 498,232.62
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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.