Finding the Fourth Proportional to 561,824.12, 775,320.53 and 307,175.31
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Solution
The fourth proportional to 561,824.12, 775,320.53 and 307,175.31 is: 423,903.70
Step by Step Solution
- Step 1: Write the proportion equation
561,824.12 : 775,320.53 = 307,175.31 : x - Step 2: Convert to fraction form
561,824.12/775,320.53 = 307,175.31/x - Step 3: Cross multiply
561,824.12x = 775,320.53 × 307,175.31 - Step 4: Simplify right side
561,824.12x = 238,159,322,616.24 - Step 5: Solve for x
x = 238,159,322,616.24/561,824.12 - Step 6: Final answer
x = 423,903.70
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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.