Finding the Fourth Proportional to 1,587,027.71, 2,190,768.44 and 1,071,479.99
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Solution
The fourth proportional to 1,587,027.71, 2,190,768.44 and 1,071,479.99 is: 1,479,094.87
Step by Step Solution
- Step 1: Write the proportion equation
1,587,027.71 : 2,190,768.44 = 1,071,479.99 : x - Step 2: Convert to fraction form
1,587,027.71/2,190,768.44 = 1,071,479.99/x - Step 3: Cross multiply
1,587,027.71x = 2,190,768.44 × 1,071,479.99 - Step 4: Simplify right side
1,587,027.71x = 2,347,364,546,183.52 - Step 5: Solve for x
x = 2,347,364,546,183.52/1,587,027.71 - Step 6: Final answer
x = 1,479,094.87
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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.