Finding the Fourth Proportional to 942,121.23, 1,406,800.34 and 747,815.70
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Solution
The fourth proportional to 942,121.23, 1,406,800.34 and 747,815.70 is: 1,116,658.19
Step by Step Solution
- Step 1: Write the proportion equation
942,121.23 : 1,406,800.34 = 747,815.70 : x - Step 2: Convert to fraction form
942,121.23/1,406,800.34 = 747,815.70/x - Step 3: Cross multiply
942,121.23x = 1,406,800.34 × 747,815.70 - Step 4: Simplify right side
942,121.23x = 1,052,027,382,886.88 - Step 5: Solve for x
x = 1,052,027,382,886.88/942,121.23 - Step 6: Final answer
x = 1,116,658.19
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.