Finding the Fourth Proportional to 421,567.98, 581,785.11 and 249,584.70
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Solution
The fourth proportional to 421,567.98, 581,785.11 and 249,584.70 is: 344,439.50
Step by Step Solution
- Step 1: Write the proportion equation
421,567.98 : 581,785.11 = 249,584.70 : x - Step 2: Convert to fraction form
421,567.98/581,785.11 = 249,584.70/x - Step 3: Cross multiply
421,567.98x = 581,785.11 × 249,584.70 - Step 4: Simplify right side
421,567.98x = 145,204,662,143.82 - Step 5: Solve for x
x = 145,204,662,143.82/421,567.98 - Step 6: Final answer
x = 344,439.50
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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.