Finding the Fourth Proportional to 1,119,876.86, 1,545,468.99 and 636,462.38
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Solution
The fourth proportional to 1,119,876.86, 1,545,468.99 and 636,462.38 is: 878,340.21
Step by Step Solution
- Step 1: Write the proportion equation
1,119,876.86 : 1,545,468.99 = 636,462.38 : x - Step 2: Convert to fraction form
1,119,876.86/1,545,468.99 = 636,462.38/x - Step 3: Cross multiply
1,119,876.86x = 1,545,468.99 × 636,462.38 - Step 4: Simplify right side
1,119,876.86x = 983,632,871,591.60 - Step 5: Solve for x
x = 983,632,871,591.60/1,119,876.86 - Step 6: Final answer
x = 878,340.21
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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.