Finding the Fourth Proportional to 719,037.68, 992,265.76 and 396,750.80
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Solution
The fourth proportional to 719,037.68, 992,265.76 and 396,750.80 is: 547,512.66
Step by Step Solution
- Step 1: Write the proportion equation
719,037.68 : 992,265.76 = 396,750.80 : x - Step 2: Convert to fraction form
719,037.68/992,265.76 = 396,750.80/x - Step 3: Cross multiply
719,037.68x = 992,265.76 × 396,750.80 - Step 4: Simplify right side
719,037.68x = 393,682,234,092.61 - Step 5: Solve for x
x = 393,682,234,092.61/719,037.68 - Step 6: Final answer
x = 547,512.66
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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.