Finding the Fourth Proportional to 905,243.96, 1,249,237.38 and 497,372.12
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Solution
The fourth proportional to 905,243.96, 1,249,237.38 and 497,372.12 is: 686,373.92
Step by Step Solution
- Step 1: Write the proportion equation
905,243.96 : 1,249,237.38 = 497,372.12 : x - Step 2: Convert to fraction form
905,243.96/1,249,237.38 = 497,372.12/x - Step 3: Cross multiply
905,243.96x = 1,249,237.38 × 497,372.12 - Step 4: Simplify right side
905,243.96x = 621,335,844,073.85 - Step 5: Solve for x
x = 621,335,844,073.85/905,243.96 - Step 6: Final answer
x = 686,373.92
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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.