Finding the Fourth Proportional to 819,574.12, 1,130,343.78 and 688,244.68
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Solution
The fourth proportional to 819,574.12, 1,130,343.78 and 688,244.68 is: 949,216.27
Step by Step Solution
- Step 1: Write the proportion equation
819,574.12 : 1,130,343.78 = 688,244.68 : x - Step 2: Convert to fraction form
819,574.12/1,130,343.78 = 688,244.68/x - Step 3: Cross multiply
819,574.12x = 1,130,343.78 × 688,244.68 - Step 4: Simplify right side
819,574.12x = 777,953,093,156.09 - Step 5: Solve for x
x = 777,953,093,156.09/819,574.12 - Step 6: Final answer
x = 949,216.27
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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.