Finding the Fourth Proportional to 2,168,580.81, 2,992,659.21 and 1,201,727.22
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Solution
The fourth proportional to 2,168,580.81, 2,992,659.21 and 1,201,727.22 is: 1,658,393.37
Step by Step Solution
- Step 1: Write the proportion equation
2,168,580.81 : 2,992,659.21 = 1,201,727.22 : x - Step 2: Convert to fraction form
2,168,580.81/2,992,659.21 = 1,201,727.22/x - Step 3: Cross multiply
2,168,580.81x = 2,992,659.21 × 1,201,727.22 - Step 4: Simplify right side
2,168,580.81x = 3,596,360,032,840.70 - Step 5: Solve for x
x = 3,596,360,032,840.70/2,168,580.81 - Step 6: Final answer
x = 1,658,393.37
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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.