Finding the Fourth Proportional to 905,586.87, 1,249,739.85 and 497,703.18
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Solution
The fourth proportional to 905,586.87, 1,249,739.85 and 497,703.18 is: 686,846.86
Step by Step Solution
- Step 1: Write the proportion equation
905,586.87 : 1,249,739.85 = 497,703.18 : x - Step 2: Convert to fraction form
905,586.87/1,249,739.85 = 497,703.18/x - Step 3: Cross multiply
905,586.87x = 1,249,739.85 × 497,703.18 - Step 4: Simplify right side
905,586.87x = 621,999,497,517.72 - Step 5: Solve for x
x = 621,999,497,517.72/905,586.87 - Step 6: Final answer
x = 686,846.86
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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.