Finding the Fourth Proportional to 761,102.93, 1,050,237.28 and 421,486.13
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Solution
The fourth proportional to 761,102.93, 1,050,237.28 and 421,486.13 is: 581,603.92
Step by Step Solution
- Step 1: Write the proportion equation
761,102.93 : 1,050,237.28 = 421,486.13 : x - Step 2: Convert to fraction form
761,102.93/1,050,237.28 = 421,486.13/x - Step 3: Cross multiply
761,102.93x = 1,050,237.28 × 421,486.13 - Step 4: Simplify right side
761,102.93x = 442,660,446,728.93 - Step 5: Solve for x
x = 442,660,446,728.93/761,102.93 - Step 6: Final answer
x = 581,603.92
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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.