Finding the Fourth Proportional to 624,615.93, 861,969.80 and 338,135.81
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Solution
The fourth proportional to 624,615.93, 861,969.80 and 338,135.81 is: 466,627.31
Step by Step Solution
- Step 1: Write the proportion equation
624,615.93 : 861,969.80 = 338,135.81 : x - Step 2: Convert to fraction form
624,615.93/861,969.80 = 338,135.81/x - Step 3: Cross multiply
624,615.93x = 861,969.80 × 338,135.81 - Step 4: Simplify right side
624,615.93x = 291,462,850,518.01 - Step 5: Solve for x
x = 291,462,850,518.01/624,615.93 - 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.