Finding the Fourth Proportional to 647,779.41, 893,936.79 and 361,318.05
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Solution
The fourth proportional to 647,779.41, 893,936.79 and 361,318.05 is: 498,619.58
Step by Step Solution
- Step 1: Write the proportion equation
647,779.41 : 893,936.79 = 361,318.05 : x - Step 2: Convert to fraction form
647,779.41/893,936.79 = 361,318.05/x - Step 3: Cross multiply
647,779.41x = 893,936.79 × 361,318.05 - Step 4: Simplify right side
647,779.41x = 322,995,497,786.06 - Step 5: Solve for x
x = 322,995,497,786.06/647,779.41 - Step 6: Final answer
x = 498,619.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.