Finding the Fourth Proportional to 631,794.36, 947,108.34 and 315,976.44
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Solution
The fourth proportional to 631,794.36, 947,108.34 and 315,976.44 is: 473,672.99
Step by Step Solution
- Step 1: Write the proportion equation
631,794.36 : 947,108.34 = 315,976.44 : x - Step 2: Convert to fraction form
631,794.36/947,108.34 = 315,976.44/x - Step 3: Cross multiply
631,794.36x = 947,108.34 × 315,976.44 - Step 4: Simplify right side
631,794.36x = 299,263,921,567.51 - Step 5: Solve for x
x = 299,263,921,567.51/631,794.36 - Step 6: Final answer
x = 473,672.99
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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.