Finding the Fourth Proportional to 862,651.36, 1,190,442.80 and 480,669.92
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Solution
The fourth proportional to 862,651.36, 1,190,442.80 and 480,669.92 is: 663,315.53
Step by Step Solution
- Step 1: Write the proportion equation
862,651.36 : 1,190,442.80 = 480,669.92 : x - Step 2: Convert to fraction form
862,651.36/1,190,442.80 = 480,669.92/x - Step 3: Cross multiply
862,651.36x = 1,190,442.80 × 480,669.92 - Step 4: Simplify right side
862,651.36x = 572,210,045,440.58 - Step 5: Solve for x
x = 572,210,045,440.58/862,651.36 - Step 6: Final answer
x = 663,315.53
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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.