Finding the Fourth Proportional to 1,011,745.86, 1,396,356.39 and 603,865.14
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Solution
The fourth proportional to 1,011,745.86, 1,396,356.39 and 603,865.14 is: 833,421.69
Step by Step Solution
- Step 1: Write the proportion equation
1,011,745.86 : 1,396,356.39 = 603,865.14 : x - Step 2: Convert to fraction form
1,011,745.86/1,396,356.39 = 603,865.14/x - Step 3: Cross multiply
1,011,745.86x = 1,396,356.39 × 603,865.14 - Step 4: Simplify right side
1,011,745.86x = 843,210,946,937.25 - Step 5: Solve for x
x = 843,210,946,937.25/1,011,745.86 - Step 6: Final answer
x = 833,421.69
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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.