Finding the Fourth Proportional to 507,393.95, 699,938.17 and 313,739.75
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Solution
The fourth proportional to 507,393.95, 699,938.17 and 313,739.75 is: 432,796.70
Step by Step Solution
- Step 1: Write the proportion equation
507,393.95 : 699,938.17 = 313,739.75 : x - Step 2: Convert to fraction form
507,393.95/699,938.17 = 313,739.75/x - Step 3: Cross multiply
507,393.95x = 699,938.17 × 313,739.75 - Step 4: Simplify right side
507,393.95x = 219,598,426,471.26 - Step 5: Solve for x
x = 219,598,426,471.26/507,393.95 - Step 6: Final answer
x = 432,796.70
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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.