Finding the Fourth Proportional to 567,140.99, 782,649.68 and 312,490.35
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Solution
The fourth proportional to 567,140.99, 782,649.68 and 312,490.35 is: 431,233.99
Step by Step Solution
- Step 1: Write the proportion equation
567,140.99 : 782,649.68 = 312,490.35 : x - Step 2: Convert to fraction form
567,140.99/782,649.68 = 312,490.35/x - Step 3: Cross multiply
567,140.99x = 782,649.68 × 312,490.35 - Step 4: Simplify right side
567,140.99x = 244,570,470,868.14 - Step 5: Solve for x
x = 244,570,470,868.14/567,140.99 - Step 6: Final answer
x = 431,233.99
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1.5x scale
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.