Finding the Fourth Proportional to 960,014.20, 1,440,021.30 and 661,415.80
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Solution
The fourth proportional to 960,014.20, 1,440,021.30 and 661,415.80 is: 992,123.70
Step by Step Solution
- Step 1: Write the proportion equation
960,014.20 : 1,440,021.30 = 661,415.80 : x - Step 2: Convert to fraction form
960,014.20/1,440,021.30 = 661,415.80/x - Step 3: Cross multiply
960,014.20x = 1,440,021.30 × 661,415.80 - Step 4: Simplify right side
960,014.20x = 952,452,840,156.54 - Step 5: Solve for x
x = 952,452,840,156.54/960,014.20 - Step 6: Final answer
x = 992,123.70
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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.