Finding the Fourth Proportional to 802,631.12, 1,107,643.40 and 440,088.08
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Solution
The fourth proportional to 802,631.12, 1,107,643.40 and 440,088.08 is: 607,328.38
Step by Step Solution
- Step 1: Write the proportion equation
802,631.12 : 1,107,643.40 = 440,088.08 : x - Step 2: Convert to fraction form
802,631.12/1,107,643.40 = 440,088.08/x - Step 3: Cross multiply
802,631.12x = 1,107,643.40 × 440,088.08 - Step 4: Simplify right side
802,631.12x = 487,460,657,230.67 - Step 5: Solve for x
x = 487,460,657,230.67/802,631.12 - Step 6: Final answer
x = 607,328.38
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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.