Finding the Fourth Proportional to 659,349.36, 909,512.28 and 420,885.36
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Solution
The fourth proportional to 659,349.36, 909,512.28 and 420,885.36 is: 580,572.95
Step by Step Solution
- Step 1: Write the proportion equation
659,349.36 : 909,512.28 = 420,885.36 : x - Step 2: Convert to fraction form
659,349.36/909,512.28 = 420,885.36/x - Step 3: Cross multiply
659,349.36x = 909,512.28 × 420,885.36 - Step 4: Simplify right side
659,349.36x = 382,800,403,392.22 - Step 5: Solve for x
x = 382,800,403,392.22/659,349.36 - Step 6: Final answer
x = 580,572.95
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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.