Finding the Fourth Proportional to 1,120,224.76, 1,545,848.70 and 636,722.80
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Solution
The fourth proportional to 1,120,224.76, 1,545,848.70 and 636,722.80 is: 878,642.53
Step by Step Solution
- Step 1: Write the proportion equation
1,120,224.76 : 1,545,848.70 = 636,722.80 : x - Step 2: Convert to fraction form
1,120,224.76/1,545,848.70 = 636,722.80/x - Step 3: Cross multiply
1,120,224.76x = 1,545,848.70 × 636,722.80 - Step 4: Simplify right side
1,120,224.76x = 984,277,112,640.36 - Step 5: Solve for x
x = 984,277,112,640.36/1,120,224.76 - Step 6: Final answer
x = 878,642.53
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1.5x scale
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.