Finding the Fourth Proportional to 664,637.80, 996,956.70 and 384,701.80
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Solution
The fourth proportional to 664,637.80, 996,956.70 and 384,701.80 is: 577,052.70
Step by Step Solution
- Step 1: Write the proportion equation
664,637.80 : 996,956.70 = 384,701.80 : x - Step 2: Convert to fraction form
664,637.80/996,956.70 = 384,701.80/x - Step 3: Cross multiply
664,637.80x = 996,956.70 × 384,701.80 - Step 4: Simplify right side
664,637.80x = 383,531,037,012.06 - Step 5: Solve for x
x = 383,531,037,012.06/664,637.80 - Step 6: Final answer
x = 577,052.70
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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.