Finding the Fourth Proportional to 989,814.70, 1,484,722.05 and 740,982.70
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Solution
The fourth proportional to 989,814.70, 1,484,722.05 and 740,982.70 is: 1,111,474.05
Step by Step Solution
- Step 1: Write the proportion equation
989,814.70 : 1,484,722.05 = 740,982.70 : x - Step 2: Convert to fraction form
989,814.70/1,484,722.05 = 740,982.70/x - Step 3: Cross multiply
989,814.70x = 1,484,722.05 × 740,982.70 - Step 4: Simplify right side
989,814.70x = 1,100,153,353,358.53 - Step 5: Solve for x
x = 1,100,153,353,358.53/989,814.70 - Step 6: Final answer
x = 1,111,474.05
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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.