Finding the Fourth Proportional to 719,829.12, 993,320.64 and 433,441.92
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Solution
The fourth proportional to 719,829.12, 993,320.64 and 433,441.92 is: 598,123.63
Step by Step Solution
- Step 1: Write the proportion equation
719,829.12 : 993,320.64 = 433,441.92 : x - Step 2: Convert to fraction form
719,829.12/993,320.64 = 433,441.92/x - Step 3: Cross multiply
719,829.12x = 993,320.64 × 433,441.92 - Step 4: Simplify right side
719,829.12x = 430,546,805,377.23 - Step 5: Solve for x
x = 430,546,805,377.23/719,829.12 - Step 6: Final answer
x = 598,123.63
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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.