Finding the Fourth Proportional to 979,254.05, 1,351,024.16 and 639,919.13
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Solution
The fourth proportional to 979,254.05, 1,351,024.16 and 639,919.13 is: 882,862.01
Step by Step Solution
- Step 1: Write the proportion equation
979,254.05 : 1,351,024.16 = 639,919.13 : x - Step 2: Convert to fraction form
979,254.05/1,351,024.16 = 639,919.13/x - Step 3: Cross multiply
979,254.05x = 1,351,024.16 × 639,919.13 - Step 4: Simplify right side
979,254.05x = 864,546,195,121.46 - Step 5: Solve for x
x = 864,546,195,121.46/979,254.05 - Step 6: Final answer
x = 882,862.01
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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.