Finding the Fourth Proportional to 624,615.31, 861,968.94 and 338,135.18
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Solution
The fourth proportional to 624,615.31, 861,968.94 and 338,135.18 is: 466,626.45
Step by Step Solution
- Step 1: Write the proportion equation
624,615.31 : 861,968.94 = 338,135.18 : x - Step 2: Convert to fraction form
624,615.31/861,968.94 = 338,135.18/x - Step 3: Cross multiply
624,615.31x = 861,968.94 × 338,135.18 - Step 4: Simplify right side
624,615.31x = 291,462,022,681.31 - Step 5: Solve for x
x = 291,462,022,681.31/624,615.31 - Step 6: Final answer
x = 466,626.45
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1.5x scale
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.