Finding the Fourth Proportional to 488,031.52, 673,279.68 and 318,259.84
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Solution
The fourth proportional to 488,031.52, 673,279.68 and 318,259.84 is: 439,065.66
Step by Step Solution
- Step 1: Write the proportion equation
488,031.52 : 673,279.68 = 318,259.84 : x - Step 2: Convert to fraction form
488,031.52/673,279.68 = 318,259.84/x - Step 3: Cross multiply
488,031.52x = 673,279.68 × 318,259.84 - Step 4: Simplify right side
488,031.52x = 214,277,883,232.05 - Step 5: Solve for x
x = 214,277,883,232.05/488,031.52 - Step 6: Final answer
x = 439,065.66
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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.