Finding the Fourth Proportional to 427,301.19, 589,610.13 and 245,978.09
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Solution
The fourth proportional to 427,301.19, 589,610.13 and 245,978.09 is: 339,412.05
Step by Step Solution
- Step 1: Write the proportion equation
427,301.19 : 589,610.13 = 245,978.09 : x - Step 2: Convert to fraction form
427,301.19/589,610.13 = 245,978.09/x - Step 3: Cross multiply
427,301.19x = 589,610.13 × 245,978.09 - Step 4: Simplify right side
427,301.19x = 145,031,173,622.05 - Step 5: Solve for x
x = 145,031,173,622.05/427,301.19 - Step 6: Final answer
x = 339,412.05
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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.