Finding the Fourth Proportional to 1,595,571.57, 2,201,888.76 and 870,422.21
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Solution
The fourth proportional to 1,595,571.57, 2,201,888.76 and 870,422.21 is: 1,201,182.64
Step by Step Solution
- Step 1: Write the proportion equation
1,595,571.57 : 2,201,888.76 = 870,422.21 : x - Step 2: Convert to fraction form
1,595,571.57/2,201,888.76 = 870,422.21/x - Step 3: Cross multiply
1,595,571.57x = 2,201,888.76 × 870,422.21 - Step 4: Simplify right side
1,595,571.57x = 1,916,572,869,643.92 - Step 5: Solve for x
x = 1,916,572,869,643.92/1,595,571.57 - Step 6: Final answer
x = 1,201,182.64
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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.