Finding the Fourth Proportional to 658,432.58, 908,710.70 and 371,971.12
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Solution
The fourth proportional to 658,432.58, 908,710.70 and 371,971.12 is: 513,361.80
Step by Step Solution
- Step 1: Write the proportion equation
658,432.58 : 908,710.70 = 371,971.12 : x - Step 2: Convert to fraction form
658,432.58/908,710.70 = 371,971.12/x - Step 3: Cross multiply
658,432.58x = 908,710.70 × 371,971.12 - Step 4: Simplify right side
658,432.58x = 338,014,136,834.98 - Step 5: Solve for x
x = 338,014,136,834.98/658,432.58 - Step 6: Final answer
x = 513,361.80
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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.