Finding the Fourth Proportional to 673,854.19, 929,911.70 and 367,929.61
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Solution
The fourth proportional to 673,854.19, 929,911.70 and 367,929.61 is: 507,738.99
Step by Step Solution
- Step 1: Write the proportion equation
673,854.19 : 929,911.70 = 367,929.61 : x - Step 2: Convert to fraction form
673,854.19/929,911.70 = 367,929.61/x - Step 3: Cross multiply
673,854.19x = 929,911.70 × 367,929.61 - Step 4: Simplify right side
673,854.19x = 342,142,049,115.44 - Step 5: Solve for x
x = 342,142,049,115.44/673,854.19 - Step 6: Final answer
x = 507,738.99
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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.