Finding the Fourth Proportional to 626,391.02, 864,421.88 and 339,911.10
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Solution
The fourth proportional to 626,391.02, 864,421.88 and 339,911.10 is: 469,078.55
Step by Step Solution
- Step 1: Write the proportion equation
626,391.02 : 864,421.88 = 339,911.10 : x - Step 2: Convert to fraction form
626,391.02/864,421.88 = 339,911.10/x - Step 3: Cross multiply
626,391.02x = 864,421.88 × 339,911.10 - Step 4: Simplify right side
626,391.02x = 293,826,590,395.31 - Step 5: Solve for x
x = 293,826,590,395.31/626,391.02 - Step 6: Final answer
x = 469,078.55
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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.