Finding the Fourth Proportional to 753,068.20, 1,129,602.30 and 353,984.44
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Solution
The fourth proportional to 753,068.20, 1,129,602.30 and 353,984.44 is: 530,976.66
Step by Step Solution
- Step 1: Write the proportion equation
753,068.20 : 1,129,602.30 = 353,984.44 : x - Step 2: Convert to fraction form
753,068.20/1,129,602.30 = 353,984.44/x - Step 3: Cross multiply
753,068.20x = 1,129,602.30 × 353,984.44 - Step 4: Simplify right side
753,068.20x = 399,861,637,588.21 - Step 5: Solve for x
x = 399,861,637,588.21/753,068.20 - Step 6: Final answer
x = 530,976.66
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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.