Finding the Fourth Proportional to 719,037.68, 992,271.24 and 396,747.75
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Solution
The fourth proportional to 719,037.68, 992,271.24 and 396,747.75 is: 547,511.49
Step by Step Solution
- Step 1: Write the proportion equation
719,037.68 : 992,271.24 = 396,747.75 : x - Step 2: Convert to fraction form
719,037.68/992,271.24 = 396,747.75/x - Step 3: Cross multiply
719,037.68x = 992,271.24 × 396,747.75 - Step 4: Simplify right side
719,037.68x = 393,681,385,580.73 - Step 5: Solve for x
x = 393,681,385,580.73/719,037.68 - Step 6: Final answer
x = 547,511.49
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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.