Finding the Fourth Proportional to 642,403.80, 963,605.70 and 603,037.80
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Solution
The fourth proportional to 642,403.80, 963,605.70 and 603,037.80 is: 904,556.70
Step by Step Solution
- Step 1: Write the proportion equation
642,403.80 : 963,605.70 = 603,037.80 : x - Step 2: Convert to fraction form
642,403.80/963,605.70 = 603,037.80/x - Step 3: Cross multiply
642,403.80x = 963,605.70 × 603,037.80 - Step 4: Simplify right side
642,403.80x = 581,090,661,395.46 - Step 5: Solve for x
x = 581,090,661,395.46/642,403.80 - Step 6: Final answer
x = 904,556.70
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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.