Finding the Fourth Proportional to 1,997,421.68, 2,996,416.80 and 649,150.80
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Solution
The fourth proportional to 1,997,421.68, 2,996,416.80 and 649,150.80 is: 973,818.59
Step by Step Solution
- Step 1: Write the proportion equation
1,997,421.68 : 2,996,416.80 = 649,150.80 : x - Step 2: Convert to fraction form
1,997,421.68/2,996,416.80 = 649,150.80/x - Step 3: Cross multiply
1,997,421.68x = 2,996,416.80 × 649,150.80 - Step 4: Simplify right side
1,997,421.68x = 1,945,126,362,853.44 - Step 5: Solve for x
x = 1,945,126,362,853.44/1,997,421.68 - Step 6: Final answer
x = 973,818.59
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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.