Finding the Fourth Proportional to 487,069.90, 729,620.70 and 276,461.80
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Solution
The fourth proportional to 487,069.90, 729,620.70 and 276,461.80 is: 414,134.09
Step by Step Solution
- Step 1: Write the proportion equation
487,069.90 : 729,620.70 = 276,461.80 : x - Step 2: Convert to fraction form
487,069.90/729,620.70 = 276,461.80/x - Step 3: Cross multiply
487,069.90x = 729,620.70 × 276,461.80 - Step 4: Simplify right side
487,069.90x = 201,712,252,039.26 - Step 5: Solve for x
x = 201,712,252,039.26/487,069.90 - Step 6: Final answer
x = 414,134.09
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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.