Finding the Fourth Proportional to 641,153.80, 961,730.70 and 346,241.80
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Solution
The fourth proportional to 641,153.80, 961,730.70 and 346,241.80 is: 519,362.70
Step by Step Solution
- Step 1: Write the proportion equation
641,153.80 : 961,730.70 = 346,241.80 : x - Step 2: Convert to fraction form
641,153.80/961,730.70 = 346,241.80/x - Step 3: Cross multiply
641,153.80x = 961,730.70 × 346,241.80 - Step 4: Simplify right side
641,153.80x = 332,991,368,683.26 - Step 5: Solve for x
x = 332,991,368,683.26/641,153.80 - Step 6: Final answer
x = 519,362.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.