Finding the Fourth Proportional to 1,006,605.68, 1,389,115.84 and 553,896.68
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Solution
The fourth proportional to 1,006,605.68, 1,389,115.84 and 553,896.68 is: 764,377.42
Step by Step Solution
- Step 1: Write the proportion equation
1,006,605.68 : 1,389,115.84 = 553,896.68 : x - Step 2: Convert to fraction form
1,006,605.68/1,389,115.84 = 553,896.68/x - Step 3: Cross multiply
1,006,605.68x = 1,389,115.84 × 553,896.68 - Step 4: Simplify right side
1,006,605.68x = 769,426,649,823.36 - Step 5: Solve for x
x = 769,426,649,823.36/1,006,605.68 - Step 6: Final answer
x = 764,377.42
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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.