Finding the Fourth Proportional to 752,715.50, 1,038,744.79 and 408,551.40
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Solution
The fourth proportional to 752,715.50, 1,038,744.79 and 408,551.40 is: 563,799.53
Step by Step Solution
- Step 1: Write the proportion equation
752,715.50 : 1,038,744.79 = 408,551.40 : x - Step 2: Convert to fraction form
752,715.50/1,038,744.79 = 408,551.40/x - Step 3: Cross multiply
752,715.50x = 1,038,744.79 × 408,551.40 - Step 4: Simplify right side
752,715.50x = 424,380,641,071.12 - Step 5: Solve for x
x = 424,380,641,071.12/752,715.50 - Step 6: Final answer
x = 563,799.53
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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.