Finding the Fourth Proportional to 426,165.93, 588,330.08 and 311,315.63
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Solution
The fourth proportional to 426,165.93, 588,330.08 and 311,315.63 is: 429,777.07
Step by Step Solution
- Step 1: Write the proportion equation
426,165.93 : 588,330.08 = 311,315.63 : x - Step 2: Convert to fraction form
426,165.93/588,330.08 = 311,315.63/x - Step 3: Cross multiply
426,165.93x = 588,330.08 × 311,315.63 - Step 4: Simplify right side
426,165.93x = 183,156,345,004.92 - Step 5: Solve for x
x = 183,156,345,004.92/426,165.93 - Step 6: Final answer
x = 429,777.07
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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.