Finding the Fourth Proportional to 725,070.21, 1,000,561 and 419,117.44
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Solution
The fourth proportional to 725,070.21, 1,000,561 and 419,117.44 is: 578,361.32
Step by Step Solution
- Step 1: Write the proportion equation
725,070.21 : 1,000,561 = 419,117.44 : x - Step 2: Convert to fraction form
725,070.21/1,000,561 = 419,117.44/x - Step 3: Cross multiply
725,070.21x = 1,000,561 × 419,117.44 - Step 4: Simplify right side
725,070.21x = 419,352,564,883.84 - Step 5: Solve for x
x = 419,352,564,883.84/725,070.21 - Step 6: Final answer
x = 578,361.32
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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.