Finding the Fourth Proportional to 755,460.51, 1,042,533.63 and 415,928.76
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Solution
The fourth proportional to 755,460.51, 1,042,533.63 and 415,928.76 is: 573,980.66
Step by Step Solution
- Step 1: Write the proportion equation
755,460.51 : 1,042,533.63 = 415,928.76 : x - Step 2: Convert to fraction form
755,460.51/1,042,533.63 = 415,928.76/x - Step 3: Cross multiply
755,460.51x = 1,042,533.63 × 415,928.76 - Step 4: Simplify right side
755,460.51x = 433,619,719,984.20 - Step 5: Solve for x
x = 433,619,719,984.20/755,460.51 - Step 6: Final answer
x = 573,980.66
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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.