Finding the Fourth Proportional to 890,261.92, 1,335,454.08 and 357,783.40
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Solution
The fourth proportional to 890,261.92, 1,335,454.08 and 357,783.40 is: 536,699.70
Step by Step Solution
- Step 1: Write the proportion equation
890,261.92 : 1,335,454.08 = 357,783.40 : x - Step 2: Convert to fraction form
890,261.92/1,335,454.08 = 357,783.40/x - Step 3: Cross multiply
890,261.92x = 1,335,454.08 × 357,783.40 - Step 4: Simplify right side
890,261.92x = 477,803,301,286.27 - Step 5: Solve for x
x = 477,803,301,286.27/890,261.92 - Step 6: Final answer
x = 536,699.70
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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.