Finding the Fourth Proportional to 764,821.17, 1,055,454.09 and 425,282.13
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Solution
The fourth proportional to 764,821.17, 1,055,454.09 and 425,282.13 is: 586,889.83
Step by Step Solution
- Step 1: Write the proportion equation
764,821.17 : 1,055,454.09 = 425,282.13 : x - Step 2: Convert to fraction form
764,821.17/1,055,454.09 = 425,282.13/x - Step 3: Cross multiply
764,821.17x = 1,055,454.09 × 425,282.13 - Step 4: Simplify right side
764,821.17x = 448,865,763,512.41 - Step 5: Solve for x
x = 448,865,763,512.41/764,821.17 - Step 6: Final answer
x = 586,889.83
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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.