Finding the Fourth Proportional to 612,785.05, 919,176.12 and 291,963.08
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Solution
The fourth proportional to 612,785.05, 919,176.12 and 291,963.08 is: 437,943.93
Step by Step Solution
- Step 1: Write the proportion equation
612,785.05 : 919,176.12 = 291,963.08 : x - Step 2: Convert to fraction form
612,785.05/919,176.12 = 291,963.08/x - Step 3: Cross multiply
612,785.05x = 919,176.12 × 291,963.08 - Step 4: Simplify right side
612,785.05x = 268,365,493,355.59 - Step 5: Solve for x
x = 268,365,493,355.59/612,785.05 - Step 6: Final answer
x = 437,943.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.