Finding the Fourth Proportional to 624,615.55, 861,969.74 and 338,135.63
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Solution
The fourth proportional to 624,615.55, 861,969.74 and 338,135.63 is: 466,627.31
Step by Step Solution
- Step 1: Write the proportion equation
624,615.55 : 861,969.74 = 338,135.63 : x - Step 2: Convert to fraction form
624,615.55/861,969.74 = 338,135.63/x - Step 3: Cross multiply
624,615.55x = 861,969.74 × 338,135.63 - Step 4: Simplify right side
624,615.55x = 291,462,675,075.31 - Step 5: Solve for x
x = 291,462,675,075.31/624,615.55 - Step 6: Final answer
x = 466,627.31
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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.