Finding the Fourth Proportional to 752,445.84, 1,038,387.96 and 412,945.68
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Solution
The fourth proportional to 752,445.84, 1,038,387.96 and 412,945.68 is: 569,872.01
Step by Step Solution
- Step 1: Write the proportion equation
752,445.84 : 1,038,387.96 = 412,945.68 : x - Step 2: Convert to fraction form
752,445.84/1,038,387.96 = 412,945.68/x - Step 3: Cross multiply
752,445.84x = 1,038,387.96 × 412,945.68 - Step 4: Simplify right side
752,445.84x = 428,797,822,246.01 - Step 5: Solve for x
x = 428,797,822,246.01/752,445.84 - Step 6: Final answer
x = 569,872.01
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1.5x scale
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.