Finding the Fourth Proportional to 1,339,610.68, 1,848,620.08 and 766,638.55
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Solution
The fourth proportional to 1,339,610.68, 1,848,620.08 and 766,638.55 is: 1,057,936.79
Step by Step Solution
- Step 1: Write the proportion equation
1,339,610.68 : 1,848,620.08 = 766,638.55 : x - Step 2: Convert to fraction form
1,339,610.68/1,848,620.08 = 766,638.55/x - Step 3: Cross multiply
1,339,610.68x = 1,848,620.08 × 766,638.55 - Step 4: Simplify right side
1,339,610.68x = 1,417,223,417,632.08 - Step 5: Solve for x
x = 1,417,223,417,632.08/1,339,610.68 - Step 6: Final answer
x = 1,057,936.79
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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.