Finding the Fourth Proportional to 1,542,459.84, 2,313,621.60 and 420,528.96
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Solution
The fourth proportional to 1,542,459.84, 2,313,621.60 and 420,528.96 is: 630,774.86
Step by Step Solution
- Step 1: Write the proportion equation
1,542,459.84 : 2,313,621.60 = 420,528.96 : x - Step 2: Convert to fraction form
1,542,459.84/2,313,621.60 = 420,528.96/x - Step 3: Cross multiply
1,542,459.84x = 2,313,621.60 × 420,528.96 - Step 4: Simplify right side
1,542,459.84x = 972,944,885,281.54 - Step 5: Solve for x
x = 972,944,885,281.54/1,542,459.84 - Step 6: Final answer
x = 630,774.86
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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.