Finding the Fourth Proportional to 624,612.93, 861,965.66 and 338,132.81
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Solution
The fourth proportional to 624,612.93, 861,965.66 and 338,132.81 is: 466,623.17
Step by Step Solution
- Step 1: Write the proportion equation
624,612.93 : 861,965.66 = 338,132.81 : x - Step 2: Convert to fraction form
624,612.93/861,965.66 = 338,132.81/x - Step 3: Cross multiply
624,612.93x = 861,965.66 × 338,132.81 - Step 4: Simplify right side
624,612.93x = 291,458,864,738.81 - Step 5: Solve for x
x = 291,458,864,738.81/624,612.93 - Step 6: Final answer
x = 466,623.17
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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.