Finding the Fourth Proportional to 905,658.15, 1,249,821.19 and 497,797.71
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Solution
The fourth proportional to 905,658.15, 1,249,821.19 and 497,797.71 is: 686,967.95
Step by Step Solution
- Step 1: Write the proportion equation
905,658.15 : 1,249,821.19 = 497,797.71 : x - Step 2: Convert to fraction form
905,658.15/1,249,821.19 = 497,797.71/x - Step 3: Cross multiply
905,658.15x = 1,249,821.19 × 497,797.71 - Step 4: Simplify right side
905,658.15x = 622,158,126,291.48 - Step 5: Solve for x
x = 622,158,126,291.48/905,658.15 - Step 6: Final answer
x = 686,967.95
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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.