Finding the Fourth Proportional to 771,415.07, 1,157,198.71 and 265,909.49
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Solution
The fourth proportional to 771,415.07, 1,157,198.71 and 265,909.49 is: 398,890.47
Step by Step Solution
- Step 1: Write the proportion equation
771,415.07 : 1,157,198.71 = 265,909.49 : x - Step 2: Convert to fraction form
771,415.07/1,157,198.71 = 265,909.49/x - Step 3: Cross multiply
771,415.07x = 1,157,198.71 × 265,909.49 - Step 4: Simplify right side
771,415.07x = 307,710,118,804.76 - Step 5: Solve for x
x = 307,710,118,804.76/771,415.07 - Step 6: Final answer
x = 398,890.47
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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.