Finding the Fourth Proportional to 905,614.38, 1,249,777.82 and 497,730.68
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Solution
The fourth proportional to 905,614.38, 1,249,777.82 and 497,730.68 is: 686,884.81
Step by Step Solution
- Step 1: Write the proportion equation
905,614.38 : 1,249,777.82 = 497,730.68 : x - Step 2: Convert to fraction form
905,614.38/1,249,777.82 = 497,730.68/x - Step 3: Cross multiply
905,614.38x = 1,249,777.82 × 497,730.68 - Step 4: Simplify right side
905,614.38x = 622,052,764,197.52 - Step 5: Solve for x
x = 622,052,764,197.52/905,614.38 - Step 6: Final answer
x = 686,884.81
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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.