Finding the Fourth Proportional to 864,473.20, 1,296,813.28 and 265,355.84
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Solution
The fourth proportional to 864,473.20, 1,296,813.28 and 265,355.84 is: 398,065.52
Step by Step Solution
- Step 1: Write the proportion equation
864,473.20 : 1,296,813.28 = 265,355.84 : x - Step 2: Convert to fraction form
864,473.20/1,296,813.28 = 265,355.84/x - Step 3: Cross multiply
864,473.20x = 1,296,813.28 × 265,355.84 - Step 4: Simplify right side
864,473.20x = 344,116,977,237.56 - Step 5: Solve for x
x = 344,116,977,237.56/864,473.20 - Step 6: Final answer
x = 398,065.52
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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.