Finding the Fourth Proportional to 1,178,722.80, 1,765,459.80 and 1,021,258.80
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Solution
The fourth proportional to 1,178,722.80, 1,765,459.80 and 1,021,258.80 is: 1,529,614.39
Step by Step Solution
- Step 1: Write the proportion equation
1,178,722.80 : 1,765,459.80 = 1,021,258.80 : x - Step 2: Convert to fraction form
1,178,722.80/1,765,459.80 = 1,021,258.80/x - Step 3: Cross multiply
1,178,722.80x = 1,765,459.80 × 1,021,258.80 - Step 4: Simplify right side
1,178,722.80x = 1,802,991,356,796.24 - Step 5: Solve for x
x = 1,802,991,356,796.24/1,178,722.80 - Step 6: Final answer
x = 1,529,614.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.