Finding the Fourth Proportional to 554,493.20, 831,739.80 and 440,331.80
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Solution
The fourth proportional to 554,493.20, 831,739.80 and 440,331.80 is: 660,497.70
Step by Step Solution
- Step 1: Write the proportion equation
554,493.20 : 831,739.80 = 440,331.80 : x - Step 2: Convert to fraction form
554,493.20/831,739.80 = 440,331.80/x - Step 3: Cross multiply
554,493.20x = 831,739.80 × 440,331.80 - Step 4: Simplify right side
554,493.20x = 366,241,483,265.64 - Step 5: Solve for x
x = 366,241,483,265.64/554,493.20 - Step 6: Final answer
x = 660,497.70
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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.