Finding the Fourth Proportional to 646,917.80, 970,376.70 and 366,981.80
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Solution
The fourth proportional to 646,917.80, 970,376.70 and 366,981.80 is: 550,472.70
Step by Step Solution
- Step 1: Write the proportion equation
646,917.80 : 970,376.70 = 366,981.80 : x - Step 2: Convert to fraction form
646,917.80/970,376.70 = 366,981.80/x - Step 3: Cross multiply
646,917.80x = 970,376.70 × 366,981.80 - Step 4: Simplify right side
646,917.80x = 356,110,588,044.06 - Step 5: Solve for x
x = 356,110,588,044.06/646,917.80 - Step 6: Final answer
x = 550,472.70
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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.