Finding the Fourth Proportional to 748,811.64, 1,033,344.84 and 409,282.32
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Solution
The fourth proportional to 748,811.64, 1,033,344.84 and 409,282.32 is: 564,801.28
Step by Step Solution
- Step 1: Write the proportion equation
748,811.64 : 1,033,344.84 = 409,282.32 : x - Step 2: Convert to fraction form
748,811.64/1,033,344.84 = 409,282.32/x - Step 3: Cross multiply
748,811.64x = 1,033,344.84 × 409,282.32 - Step 4: Simplify right side
748,811.64x = 422,929,773,475.23 - Step 5: Solve for x
x = 422,929,773,475.23/748,811.64 - Step 6: Final answer
x = 564,801.28
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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.