Finding the Fourth Proportional to 905,197.97, 1,249,195.21 and 497,326.23
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Solution
The fourth proportional to 905,197.97, 1,249,195.21 and 497,326.23 is: 686,322.29
Step by Step Solution
- Step 1: Write the proportion equation
905,197.97 : 1,249,195.21 = 497,326.23 : x - Step 2: Convert to fraction form
905,197.97/1,249,195.21 = 497,326.23/x - Step 3: Cross multiply
905,197.97x = 1,249,195.21 × 497,326.23 - Step 4: Simplify right side
905,197.97x = 621,257,543,080.04 - Step 5: Solve for x
x = 621,257,543,080.04/905,197.97 - Step 6: Final answer
x = 686,322.29
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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.