Finding the Fourth Proportional to 905,626.28, 1,249,792.36 and 497,720.68
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Solution
The fourth proportional to 905,626.28, 1,249,792.36 and 497,720.68 is: 686,869.98
Step by Step Solution
- Step 1: Write the proportion equation
905,626.28 : 1,249,792.36 = 497,720.68 : x - Step 2: Convert to fraction form
905,626.28/1,249,792.36 = 497,720.68/x - Step 3: Cross multiply
905,626.28x = 1,249,792.36 × 497,720.68 - Step 4: Simplify right side
905,626.28x = 622,047,503,278.01 - Step 5: Solve for x
x = 622,047,503,278.01/905,626.28 - Step 6: Final answer
x = 686,869.98
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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.