Finding the Fourth Proportional to 771,936.98, 1,065,332.13 and 485,702.42
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Solution
The fourth proportional to 771,936.98, 1,065,332.13 and 485,702.42 is: 670,306.52
Step by Step Solution
- Step 1: Write the proportion equation
771,936.98 : 1,065,332.13 = 485,702.42 : x - Step 2: Convert to fraction form
771,936.98/1,065,332.13 = 485,702.42/x - Step 3: Cross multiply
771,936.98x = 1,065,332.13 × 485,702.42 - Step 4: Simplify right side
771,936.98x = 517,434,393,644.76 - Step 5: Solve for x
x = 517,434,393,644.76/771,936.98 - Step 6: Final answer
x = 670,306.52
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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.