Finding the Fourth Proportional to 2,989,785.80, 4,484,678.70 and 2,464,905.80
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Solution
The fourth proportional to 2,989,785.80, 4,484,678.70 and 2,464,905.80 is: 3,697,358.70
Step by Step Solution
- Step 1: Write the proportion equation
2,989,785.80 : 4,484,678.70 = 2,464,905.80 : x - Step 2: Convert to fraction form
2,989,785.80/4,484,678.70 = 2,464,905.80/x - Step 3: Cross multiply
2,989,785.80x = 4,484,678.70 × 2,464,905.80 - Step 4: Simplify right side
2,989,785.80x = 11,054,310,538,766.46 - Step 5: Solve for x
x = 11,054,310,538,766.46/2,989,785.80 - Step 6: Final answer
x = 3,697,358.70
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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.