Finding the Fourth Proportional to 850,311.24, 1,173,430.71 and 463,128.18
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Solution
The fourth proportional to 850,311.24, 1,173,430.71 and 463,128.18 is: 639,117.54
Step by Step Solution
- Step 1: Write the proportion equation
850,311.24 : 1,173,430.71 = 463,128.18 : x - Step 2: Convert to fraction form
850,311.24/1,173,430.71 = 463,128.18/x - Step 3: Cross multiply
850,311.24x = 1,173,430.71 × 463,128.18 - Step 4: Simplify right side
850,311.24x = 543,448,829,078.41 - Step 5: Solve for x
x = 543,448,829,078.41/850,311.24 - Step 6: Final answer
x = 639,117.54
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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.