Finding the Fourth Proportional to 1,310,140.87, 1,808,704.06 and 918,875.41
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Solution
The fourth proportional to 1,310,140.87, 1,808,704.06 and 918,875.41 is: 1,268,545.79
Step by Step Solution
- Step 1: Write the proportion equation
1,310,140.87 : 1,808,704.06 = 918,875.41 : x - Step 2: Convert to fraction form
1,310,140.87/1,808,704.06 = 918,875.41/x - Step 3: Cross multiply
1,310,140.87x = 1,808,704.06 × 918,875.41 - Step 4: Simplify right side
1,310,140.87x = 1,661,973,677,882.22 - Step 5: Solve for x
x = 1,661,973,677,882.22/1,310,140.87 - Step 6: Final answer
x = 1,268,545.79
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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.