Finding the Fourth Proportional to 691,140.19, 953,777.91 and 385,235.99
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Solution
The fourth proportional to 691,140.19, 953,777.91 and 385,235.99 is: 531,628.15
Step by Step Solution
- Step 1: Write the proportion equation
691,140.19 : 953,777.91 = 385,235.99 : x - Step 2: Convert to fraction form
691,140.19/953,777.91 = 385,235.99/x - Step 3: Cross multiply
691,140.19x = 953,777.91 × 385,235.99 - Step 4: Simplify right side
691,140.19x = 367,429,579,783.43 - Step 5: Solve for x
x = 367,429,579,783.43/691,140.19 - Step 6: Final answer
x = 531,628.15
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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.