Finding the Fourth Proportional to 1,990,798.76, 2,971,664.55 and 1,708,304.65
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Solution
The fourth proportional to 1,990,798.76, 2,971,664.55 and 1,708,304.65 is: 2,549,985.69
Step by Step Solution
- Step 1: Write the proportion equation
1,990,798.76 : 2,971,664.55 = 1,708,304.65 : x - Step 2: Convert to fraction form
1,990,798.76/2,971,664.55 = 1,708,304.65/x - Step 3: Cross multiply
1,990,798.76x = 2,971,664.55 × 1,708,304.65 - Step 4: Simplify right side
1,990,798.76x = 5,076,508,361,576.00 - Step 5: Solve for x
x = 5,076,508,361,576.00/1,990,798.76 - Step 6: Final answer
x = 2,549,985.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.