Finding the Fourth Proportional to 1,121,936.76, 1,681,658.55 and 854,816.58
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Solution
The fourth proportional to 1,121,936.76, 1,681,658.55 and 854,816.58 is: 1,281,275.08
Step by Step Solution
- Step 1: Write the proportion equation
1,121,936.76 : 1,681,658.55 = 854,816.58 : x - Step 2: Convert to fraction form
1,121,936.76/1,681,658.55 = 854,816.58/x - Step 3: Cross multiply
1,121,936.76x = 1,681,658.55 × 854,816.58 - Step 4: Simplify right side
1,121,936.76x = 1,437,509,610,438.76 - Step 5: Solve for x
x = 1,437,509,610,438.76/1,121,936.76 - Step 6: Final answer
x = 1,281,275.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.