Finding the Fourth Proportional to 542,984.18, 749,427.19 and 313,578.81
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Solution
The fourth proportional to 542,984.18, 749,427.19 and 313,578.81 is: 432,801.72
Step by Step Solution
- Step 1: Write the proportion equation
542,984.18 : 749,427.19 = 313,578.81 : x - Step 2: Convert to fraction form
542,984.18/749,427.19 = 313,578.81/x - Step 3: Cross multiply
542,984.18x = 749,427.19 × 313,578.81 - Step 4: Simplify right side
542,984.18x = 235,004,485,637.90 - Step 5: Solve for x
x = 235,004,485,637.90/542,984.18 - Step 6: Final answer
x = 432,801.72
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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.