Finding the Fourth Proportional to 748,285.63, 1,032,656.84 and 408,775.75
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Solution
The fourth proportional to 748,285.63, 1,032,656.84 and 408,775.75 is: 564,122.92
Step by Step Solution
- Step 1: Write the proportion equation
748,285.63 : 1,032,656.84 = 408,775.75 : x - Step 2: Convert to fraction form
748,285.63/1,032,656.84 = 408,775.75/x - Step 3: Cross multiply
748,285.63x = 1,032,656.84 × 408,775.75 - Step 4: Simplify right side
748,285.63x = 422,125,074,263.63 - Step 5: Solve for x
x = 422,125,074,263.63/748,285.63 - Step 6: Final answer
x = 564,122.92
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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.