Finding the Fourth Proportional to 841,235.28, 1,260,802.80 and 420,631.44
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Solution
The fourth proportional to 841,235.28, 1,260,802.80 and 420,631.44 is: 630,422.08
Step by Step Solution
- Step 1: Write the proportion equation
841,235.28 : 1,260,802.80 = 420,631.44 : x - Step 2: Convert to fraction form
841,235.28/1,260,802.80 = 420,631.44/x - Step 3: Cross multiply
841,235.28x = 1,260,802.80 × 420,631.44 - Step 4: Simplify right side
841,235.28x = 530,333,297,320.03 - Step 5: Solve for x
x = 530,333,297,320.03/841,235.28 - Step 6: Final answer
x = 630,422.08
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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.