Finding the Fourth Proportional to 1,055,811.52, 1,457,031.36 and 620,247.23
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Solution
The fourth proportional to 1,055,811.52, 1,457,031.36 and 620,247.23 is: 855,947.91
Step by Step Solution
- Step 1: Write the proportion equation
1,055,811.52 : 1,457,031.36 = 620,247.23 : x - Step 2: Convert to fraction form
1,055,811.52/1,457,031.36 = 620,247.23/x - Step 3: Cross multiply
1,055,811.52x = 1,457,031.36 × 620,247.23 - Step 4: Simplify right side
1,055,811.52x = 903,719,665,063.13 - Step 5: Solve for x
x = 903,719,665,063.13/1,055,811.52 - Step 6: Final answer
x = 855,947.91
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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.