Finding the Fourth Proportional to 475,907.13, 712,908.74 and 286,262.84
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Solution
The fourth proportional to 475,907.13, 712,908.74 and 286,262.84 is: 428,821.65
Step by Step Solution
- Step 1: Write the proportion equation
475,907.13 : 712,908.74 = 286,262.84 : x - Step 2: Convert to fraction form
475,907.13/712,908.74 = 286,262.84/x - Step 3: Cross multiply
475,907.13x = 712,908.74 × 286,262.84 - Step 4: Simplify right side
475,907.13x = 204,079,283,071.15 - Step 5: Solve for x
x = 204,079,283,071.15/475,907.13 - Step 6: Final answer
x = 428,821.65
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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.