Finding the Fourth Proportional to 439,710.13, 605,970.67 and 352,396.05
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Solution
The fourth proportional to 439,710.13, 605,970.67 and 352,396.05 is: 485,641.92
Step by Step Solution
- Step 1: Write the proportion equation
439,710.13 : 605,970.67 = 352,396.05 : x - Step 2: Convert to fraction form
439,710.13/605,970.67 = 352,396.05/x - Step 3: Cross multiply
439,710.13x = 605,970.67 × 352,396.05 - Step 4: Simplify right side
439,710.13x = 213,541,670,523.85 - Step 5: Solve for x
x = 213,541,670,523.85/439,710.13 - Step 6: Final answer
x = 485,641.92
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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.