Finding the Fourth Proportional to 645,482.99, 967,338.70 and 408,401.26
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Solution
The fourth proportional to 645,482.99, 967,338.70 and 408,401.26 is: 612,041.45
Step by Step Solution
- Step 1: Write the proportion equation
645,482.99 : 967,338.70 = 408,401.26 : x - Step 2: Convert to fraction form
645,482.99/967,338.70 = 408,401.26/x - Step 3: Cross multiply
645,482.99x = 967,338.70 × 408,401.26 - Step 4: Simplify right side
645,482.99x = 395,062,343,926.76 - Step 5: Solve for x
x = 395,062,343,926.76/645,482.99 - Step 6: Final answer
x = 612,041.45
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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.