Finding the Fourth Proportional to 507,392.95, 699,936.80 and 313,738.75
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Solution
The fourth proportional to 507,392.95, 699,936.80 and 313,738.75 is: 432,795.32
Step by Step Solution
- Step 1: Write the proportion equation
507,392.95 : 699,936.80 = 313,738.75 : x - Step 2: Convert to fraction form
507,392.95/699,936.80 = 313,738.75/x - Step 3: Cross multiply
507,392.95x = 699,936.80 × 313,738.75 - Step 4: Simplify right side
507,392.95x = 219,597,296,017.23 - Step 5: Solve for x
x = 219,597,296,017.23/507,392.95 - Step 6: Final answer
x = 432,795.32
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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.