Finding the Fourth Proportional to 912,698.61, 1,366,951.70 and 455,887.70
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Solution
The fourth proportional to 912,698.61, 1,366,951.70 and 455,887.70 is: 682,784.50
Step by Step Solution
- Step 1: Write the proportion equation
912,698.61 : 1,366,951.70 = 455,887.70 : x - Step 2: Convert to fraction form
912,698.61/1,366,951.70 = 455,887.70/x - Step 3: Cross multiply
912,698.61x = 1,366,951.70 × 455,887.70 - Step 4: Simplify right side
912,698.61x = 623,176,466,524.09 - Step 5: Solve for x
x = 623,176,466,524.09/912,698.61 - Step 6: Final answer
x = 682,784.50
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1.5x scale
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.