Finding the Fourth Proportional to 778,701.60, 1,167,833.70 and 246,385.80
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Solution
The fourth proportional to 778,701.60, 1,167,833.70 and 246,385.80 is: 369,509.50
Step by Step Solution
- Step 1: Write the proportion equation
778,701.60 : 1,167,833.70 = 246,385.80 : x - Step 2: Convert to fraction form
778,701.60/1,167,833.70 = 246,385.80/x - Step 3: Cross multiply
778,701.60x = 1,167,833.70 × 246,385.80 - Step 4: Simplify right side
778,701.60x = 287,737,640,441.46 - Step 5: Solve for x
x = 287,737,640,441.46/778,701.60 - Step 6: Final answer
x = 369,509.50
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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.