Finding the Fourth Proportional to 1,605,698.55, 2,215,861.61 and 870,651.49
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Solution
The fourth proportional to 1,605,698.55, 2,215,861.61 and 870,651.49 is: 1,201,497.76
Step by Step Solution
- Step 1: Write the proportion equation
1,605,698.55 : 2,215,861.61 = 870,651.49 : x - Step 2: Convert to fraction form
1,605,698.55/2,215,861.61 = 870,651.49/x - Step 3: Cross multiply
1,605,698.55x = 2,215,861.61 × 870,651.49 - Step 4: Simplify right side
1,605,698.55x = 1,929,243,210,796.87 - Step 5: Solve for x
x = 1,929,243,210,796.87/1,605,698.55 - Step 6: Final answer
x = 1,201,497.76
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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.