Finding the Fourth Proportional to 1,021,989.68, 1,410,377.69 and 586,486.70
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Solution
The fourth proportional to 1,021,989.68, 1,410,377.69 and 586,486.70 is: 809,369.96
Step by Step Solution
- Step 1: Write the proportion equation
1,021,989.68 : 1,410,377.69 = 586,486.70 : x - Step 2: Convert to fraction form
1,021,989.68/1,410,377.69 = 586,486.70/x - Step 3: Cross multiply
1,021,989.68x = 1,410,377.69 × 586,486.70 - Step 4: Simplify right side
1,021,989.68x = 827,167,747,177.40 - Step 5: Solve for x
x = 827,167,747,177.40/1,021,989.68 - Step 6: Final answer
x = 809,369.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.