Finding the Fourth Proportional to 1,617,171.20, 2,425,319.40 and 479,931.20
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Solution
The fourth proportional to 1,617,171.20, 2,425,319.40 and 479,931.20 is: 719,766.99
Step by Step Solution
- Step 1: Write the proportion equation
1,617,171.20 : 2,425,319.40 = 479,931.20 : x - Step 2: Convert to fraction form
1,617,171.20/2,425,319.40 = 479,931.20/x - Step 3: Cross multiply
1,617,171.20x = 2,425,319.40 × 479,931.20 - Step 4: Simplify right side
1,617,171.20x = 1,163,986,450,025.28 - Step 5: Solve for x
x = 1,163,986,450,025.28/1,617,171.20 - Step 6: Final answer
x = 719,766.99
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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.