Finding the Fourth Proportional to 740,239.58, 1,021,469.09 and 434,283.95
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Solution
The fourth proportional to 740,239.58, 1,021,469.09 and 434,283.95 is: 599,275.76
Step by Step Solution
- Step 1: Write the proportion equation
740,239.58 : 1,021,469.09 = 434,283.95 : x - Step 2: Convert to fraction form
740,239.58/1,021,469.09 = 434,283.95/x - Step 3: Cross multiply
740,239.58x = 1,021,469.09 × 434,283.95 - Step 4: Simplify right side
740,239.58x = 443,607,634,847.49 - Step 5: Solve for x
x = 443,607,634,847.49/740,239.58 - Step 6: Final answer
x = 599,275.76
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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.