Finding the Fourth Proportional to 626,427.20, 939,640.80 and 558,192.80
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Solution
The fourth proportional to 626,427.20, 939,640.80 and 558,192.80 is: 837,289.20
Step by Step Solution
- Step 1: Write the proportion equation
626,427.20 : 939,640.80 = 558,192.80 : x - Step 2: Convert to fraction form
626,427.20/939,640.80 = 558,192.80/x - Step 3: Cross multiply
626,427.20x = 939,640.80 × 558,192.80 - Step 4: Simplify right side
626,427.20x = 524,500,729,146.24 - Step 5: Solve for x
x = 524,500,729,146.24/626,427.20 - Step 6: Final answer
x = 837,289.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.