Finding the Fourth Proportional to 641,987.80, 963,401.84 and 242,628.62
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Solution
The fourth proportional to 641,987.80, 963,401.84 and 242,628.62 is: 364,101.71
Step by Step Solution
- Step 1: Write the proportion equation
641,987.80 : 963,401.84 = 242,628.62 : x - Step 2: Convert to fraction form
641,987.80/963,401.84 = 242,628.62/x - Step 3: Cross multiply
641,987.80x = 963,401.84 × 242,628.62 - Step 4: Simplify right side
641,987.80x = 233,748,853,824.37 - Step 5: Solve for x
x = 233,748,853,824.37/641,987.80 - Step 6: Final answer
x = 364,101.71
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1.5x scale
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.