Finding the Fourth Proportional to 1,133,861.80, 1,698,459.90 and 779,276.20
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Solution
The fourth proportional to 1,133,861.80, 1,698,459.90 and 779,276.20 is: 1,167,311.02
Step by Step Solution
- Step 1: Write the proportion equation
1,133,861.80 : 1,698,459.90 = 779,276.20 : x - Step 2: Convert to fraction form
1,133,861.80/1,698,459.90 = 779,276.20/x - Step 3: Cross multiply
1,133,861.80x = 1,698,459.90 × 779,276.20 - Step 4: Simplify right side
1,133,861.80x = 1,323,569,376,724.38 - Step 5: Solve for x
x = 1,323,569,376,724.38/1,133,861.80 - Step 6: Final answer
x = 1,167,311.02
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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.