Finding the Fourth Proportional to 513,476.92, 708,630.84 and 287,122.36
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Solution
The fourth proportional to 513,476.92, 708,630.84 and 287,122.36 is: 396,247.14
Step by Step Solution
- Step 1: Write the proportion equation
513,476.92 : 708,630.84 = 287,122.36 : x - Step 2: Convert to fraction form
513,476.92/708,630.84 = 287,122.36/x - Step 3: Cross multiply
513,476.92x = 708,630.84 × 287,122.36 - Step 4: Simplify right side
513,476.92x = 203,463,759,149.58 - Step 5: Solve for x
x = 203,463,759,149.58/513,476.92 - Step 6: Final answer
x = 396,247.14
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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.