Finding the Fourth Proportional to 5,640,485.19, 7,783,869.74 and 3,062,162.31
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Solution
The fourth proportional to 5,640,485.19, 7,783,869.74 and 3,062,162.31 is: 4,225,784.08
Step by Step Solution
- Step 1: Write the proportion equation
5,640,485.19 : 7,783,869.74 = 3,062,162.31 : x - Step 2: Convert to fraction form
5,640,485.19/7,783,869.74 = 3,062,162.31/x - Step 3: Cross multiply
5,640,485.19x = 7,783,869.74 × 3,062,162.31 - Step 4: Simplify right side
5,640,485.19x = 23,835,472,528,466.69 - Step 5: Solve for x
x = 23,835,472,528,466.69/5,640,485.19 - Step 6: Final answer
x = 4,225,784.08
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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.