Finding the Fourth Proportional to 740,273.55, 1,021,584.66 and 434,355.18
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Solution
The fourth proportional to 740,273.55, 1,021,584.66 and 434,355.18 is: 599,414.35
Step by Step Solution
- Step 1: Write the proportion equation
740,273.55 : 1,021,584.66 = 434,355.18 : x - Step 2: Convert to fraction form
740,273.55/1,021,584.66 = 434,355.18/x - Step 3: Cross multiply
740,273.55x = 1,021,584.66 × 434,355.18 - Step 4: Simplify right side
740,273.55x = 443,730,588,879.54 - Step 5: Solve for x
x = 443,730,588,879.54/740,273.55 - Step 6: Final answer
x = 599,414.35
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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.