Finding the Fourth Proportional to 752,486.10, 1,128,729.15 and 453,887.70
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Solution
The fourth proportional to 752,486.10, 1,128,729.15 and 453,887.70 is: 680,831.55
Step by Step Solution
- Step 1: Write the proportion equation
752,486.10 : 1,128,729.15 = 453,887.70 : x - Step 2: Convert to fraction form
752,486.10/1,128,729.15 = 453,887.70/x - Step 3: Cross multiply
752,486.10x = 1,128,729.15 × 453,887.70 - Step 4: Simplify right side
752,486.10x = 512,316,277,816.46 - Step 5: Solve for x
x = 512,316,277,816.46/752,486.10 - Step 6: Final answer
x = 680,831.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.