Finding the Fourth Proportional to 905,113.17, 1,249,015.82 and 542,736.99
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Solution
The fourth proportional to 905,113.17, 1,249,015.82 and 542,736.99 is: 748,952.85
Step by Step Solution
- Step 1: Write the proportion equation
905,113.17 : 1,249,015.82 = 542,736.99 : x - Step 2: Convert to fraction form
905,113.17/1,249,015.82 = 542,736.99/x - Step 3: Cross multiply
905,113.17x = 1,249,015.82 × 542,736.99 - Step 4: Simplify right side
905,113.17x = 677,887,083,895.50 - Step 5: Solve for x
x = 677,887,083,895.50/905,113.17 - Step 6: Final answer
x = 748,952.85
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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.