Finding the Fourth Proportional to 752,447.84, 1,038,390.72 and 412,947.68
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Solution
The fourth proportional to 752,447.84, 1,038,390.72 and 412,947.68 is: 569,874.77
Step by Step Solution
- Step 1: Write the proportion equation
752,447.84 : 1,038,390.72 = 412,947.68 : x - Step 2: Convert to fraction form
752,447.84/1,038,390.72 = 412,947.68/x - Step 3: Cross multiply
752,447.84x = 1,038,390.72 × 412,947.68 - Step 4: Simplify right side
752,447.84x = 428,801,038,757.53 - Step 5: Solve for x
x = 428,801,038,757.53/752,447.84 - Step 6: Final answer
x = 569,874.77
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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.