Finding the Fourth Proportional to 1,130,872.68, 1,560,584.16 and 621,574.92
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Solution
The fourth proportional to 1,130,872.68, 1,560,584.16 and 621,574.92 is: 857,762.32
Step by Step Solution
- Step 1: Write the proportion equation
1,130,872.68 : 1,560,584.16 = 621,574.92 : x - Step 2: Convert to fraction form
1,130,872.68/1,560,584.16 = 621,574.92/x - Step 3: Cross multiply
1,130,872.68x = 1,560,584.16 × 621,574.92 - Step 4: Simplify right side
1,130,872.68x = 970,019,974,405.27 - Step 5: Solve for x
x = 970,019,974,405.27/1,130,872.68 - Step 6: Final answer
x = 857,762.32
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1.5x scale
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.