Finding the Fourth Proportional to 3,119,493.12, 4,679,239.68 and 1,124,949.12
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Solution
The fourth proportional to 3,119,493.12, 4,679,239.68 and 1,124,949.12 is: 1,687,423.68
Step by Step Solution
- Step 1: Write the proportion equation
3,119,493.12 : 4,679,239.68 = 1,124,949.12 : x - Step 2: Convert to fraction form
3,119,493.12/4,679,239.68 = 1,124,949.12/x - Step 3: Cross multiply
3,119,493.12x = 4,679,239.68 × 1,124,949.12 - Step 4: Simplify right side
3,119,493.12x = 5,263,906,560,285.08 - Step 5: Solve for x
x = 5,263,906,560,285.08/3,119,493.12 - Step 6: Final answer
x = 1,687,423.68
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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.