Finding the Fourth Proportional to 849,732.21, 1,172,645.36 and 462,558.75
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Solution
The fourth proportional to 849,732.21, 1,172,645.36 and 462,558.75 is: 638,339.19
Step by Step Solution
- Step 1: Write the proportion equation
849,732.21 : 1,172,645.36 = 462,558.75 : x - Step 2: Convert to fraction form
849,732.21/1,172,645.36 = 462,558.75/x - Step 3: Cross multiply
849,732.21x = 1,172,645.36 × 462,558.75 - Step 4: Simplify right side
849,732.21x = 542,417,369,602.11 - Step 5: Solve for x
x = 542,417,369,602.11/849,732.21 - Step 6: Final answer
x = 638,339.19
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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.