Finding the Fourth Proportional to 520,603.88, 718,486.36 and 316,668.87
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Solution
The fourth proportional to 520,603.88, 718,486.36 and 316,668.87 is: 437,035.28
Step by Step Solution
- Step 1: Write the proportion equation
520,603.88 : 718,486.36 = 316,668.87 : x - Step 2: Convert to fraction form
520,603.88/718,486.36 = 316,668.87/x - Step 3: Cross multiply
520,603.88x = 718,486.36 × 316,668.87 - Step 4: Simplify right side
520,603.88x = 227,522,262,939.94 - Step 5: Solve for x
x = 227,522,262,939.94/520,603.88 - Step 6: Final answer
x = 437,035.28
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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.