Finding the Fourth Proportional to 624,615.79, 861,970.08 and 338,135.88
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Solution
The fourth proportional to 624,615.79, 861,970.08 and 338,135.88 is: 466,627.67
Step by Step Solution
- Step 1: Write the proportion equation
624,615.79 : 861,970.08 = 338,135.88 : x - Step 2: Convert to fraction form
624,615.79/861,970.08 = 338,135.88/x - Step 3: Cross multiply
624,615.79x = 861,970.08 × 338,135.88 - Step 4: Simplify right side
624,615.79x = 291,463,011,534.47 - Step 5: Solve for x
x = 291,463,011,534.47/624,615.79 - Step 6: Final answer
x = 466,627.67
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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.