Finding the Fourth Proportional to 905,122.17, 1,249,028.19 and 542,745.99
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Solution
The fourth proportional to 905,122.17, 1,249,028.19 and 542,745.99 is: 748,965.24
Step by Step Solution
- Step 1: Write the proportion equation
905,122.17 : 1,249,028.19 = 542,745.99 : x - Step 2: Convert to fraction form
905,122.17/1,249,028.19 = 542,745.99/x - Step 3: Cross multiply
905,122.17x = 1,249,028.19 × 542,745.99 - Step 4: Simplify right side
905,122.17x = 677,905,041,519.46 - Step 5: Solve for x
x = 677,905,041,519.46/905,122.17 - Step 6: Final answer
x = 748,965.24
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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.