Finding the Fourth Proportional to 3,119,685.12, 4,679,515.35 and 989,935.29
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Solution
The fourth proportional to 3,119,685.12, 4,679,515.35 and 989,935.29 is: 1,484,899.02
Step by Step Solution
- Step 1: Write the proportion equation
3,119,685.12 : 4,679,515.35 = 989,935.29 : x - Step 2: Convert to fraction form
3,119,685.12/4,679,515.35 = 989,935.29/x - Step 3: Cross multiply
3,119,685.12x = 4,679,515.35 × 989,935.29 - Step 4: Simplify right side
3,119,685.12x = 4,632,417,385,061.70 - Step 5: Solve for x
x = 4,632,417,385,061.70/3,119,685.12 - Step 6: Final answer
x = 1,484,899.02
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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.